Home / 763,703.20-1,145,554.80-587,101.60

Finding the Fourth Proportional to 763,703.20, 1,145,554.80 and 587,101.60

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Solution

The fourth proportional to 763,703.20, 1,145,554.80 and 587,101.60 is: 880,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,703.20 : 1,145,554.80 = 587,101.60 : x
  2. Step 2: Convert to fraction form
    763,703.20/1,145,554.80 = 587,101.60/x
  3. Step 3: Cross multiply
    763,703.20x = 1,145,554.80 × 587,101.60
  4. Step 4: Simplify right side
    763,703.20x = 672,557,055,967.68
  5. Step 5: Solve for x
    x = 672,557,055,967.68/763,703.20
  6. Step 6: Final answer
    x = 880,652.40

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Double scale
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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.