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Finding the Fourth Proportional to 508,665.62, 702,031.56 and 304,725.14

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Solution

The fourth proportional to 508,665.62, 702,031.56 and 304,725.14 is: 420,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,665.62 : 702,031.56 = 304,725.14 : x
  2. Step 2: Convert to fraction form
    508,665.62/702,031.56 = 304,725.14/x
  3. Step 3: Cross multiply
    508,665.62x = 702,031.56 × 304,725.14
  4. Step 4: Simplify right side
    508,665.62x = 213,926,663,385.16
  5. Step 5: Solve for x
    x = 213,926,663,385.16/508,665.62
  6. Step 6: Final answer
    x = 420,564.42

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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.