Home / 763,615.80-1,145,132.10-230,959.80

Finding the Fourth Proportional to 763,615.80, 1,145,132.10 and 230,959.80

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Solution

The fourth proportional to 763,615.80, 1,145,132.10 and 230,959.80 is: 346,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,615.80 : 1,145,132.10 = 230,959.80 : x
  2. Step 2: Convert to fraction form
    763,615.80/1,145,132.10 = 230,959.80/x
  3. Step 3: Cross multiply
    763,615.80x = 1,145,132.10 × 230,959.80
  4. Step 4: Simplify right side
    763,615.80x = 264,479,480,789.58
  5. Step 5: Solve for x
    x = 264,479,480,789.58/763,615.80
  6. Step 6: Final answer
    x = 346,351.50

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Half scale
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Double scale
Find fourth proportional to 763,616.80, 1,145,133.60 and 230,960.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.