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Finding the Fourth Proportional to 487,001.69, 671,865.82 and 323,737.14

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Solution

The fourth proportional to 487,001.69, 671,865.82 and 323,737.14 is: 446,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,001.69 : 671,865.82 = 323,737.14 : x
  2. Step 2: Convert to fraction form
    487,001.69/671,865.82 = 323,737.14/x
  3. Step 3: Cross multiply
    487,001.69x = 671,865.82 × 323,737.14
  4. Step 4: Simplify right side
    487,001.69x = 217,507,918,221.21
  5. Step 5: Solve for x
    x = 217,507,918,221.21/487,001.69
  6. Step 6: Final answer
    x = 446,626.62

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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.