Home / 742,505.38-1,024,658.13-402,973.72

Finding the Fourth Proportional to 742,505.38, 1,024,658.13 and 402,973.72

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Solution

The fourth proportional to 742,505.38, 1,024,658.13 and 402,973.72 is: 556,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,505.38 : 1,024,658.13 = 402,973.72 : x
  2. Step 2: Convert to fraction form
    742,505.38/1,024,658.13 = 402,973.72/x
  3. Step 3: Cross multiply
    742,505.38x = 1,024,658.13 × 402,973.72
  4. Step 4: Simplify right side
    742,505.38x = 412,910,298,374.34
  5. Step 5: Solve for x
    x = 412,910,298,374.34/742,505.38
  6. Step 6: Final answer
    x = 556,104.12

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.