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Finding the Fourth Proportional to 539,484, 744,487.92 and 301,020

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Solution

The fourth proportional to 539,484, 744,487.92 and 301,020 is: 415,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,484 : 744,487.92 = 301,020 : x
  2. Step 2: Convert to fraction form
    539,484/744,487.92 = 301,020/x
  3. Step 3: Cross multiply
    539,484x = 744,487.92 × 301,020
  4. Step 4: Simplify right side
    539,484x = 224,105,753,678.40
  5. Step 5: Solve for x
    x = 224,105,753,678.40/539,484
  6. Step 6: Final answer
    x = 415,407.60

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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.