Home / 742,909.73-1,025,186.68-403,370.21

Finding the Fourth Proportional to 742,909.73, 1,025,186.68 and 403,370.21

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Solution

The fourth proportional to 742,909.73, 1,025,186.68 and 403,370.21 is: 556,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,909.73 : 1,025,186.68 = 403,370.21 : x
  2. Step 2: Convert to fraction form
    742,909.73/1,025,186.68 = 403,370.21/x
  3. Step 3: Cross multiply
    742,909.73x = 1,025,186.68 × 403,370.21
  4. Step 4: Simplify right side
    742,909.73x = 413,529,766,400.80
  5. Step 5: Solve for x
    x = 413,529,766,400.80/742,909.73
  6. Step 6: Final answer
    x = 556,635.28

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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.