Home / 742,770.40-1,114,315.52-230,425.16

Finding the Fourth Proportional to 742,770.40, 1,114,315.52 and 230,425.16

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Solution

The fourth proportional to 742,770.40, 1,114,315.52 and 230,425.16 is: 345,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,770.40 : 1,114,315.52 = 230,425.16 : x
  2. Step 2: Convert to fraction form
    742,770.40/1,114,315.52 = 230,425.16/x
  3. Step 3: Cross multiply
    742,770.40x = 1,114,315.52 × 230,425.16
  4. Step 4: Simplify right side
    742,770.40x = 256,766,330,834.36
  5. Step 5: Solve for x
    x = 256,766,330,834.36/742,770.40
  6. Step 6: Final answer
    x = 345,687.35

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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.