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Finding the Fourth Proportional to 637,384.59, 879,654.27 and 475,959.39

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Solution

The fourth proportional to 637,384.59, 879,654.27 and 475,959.39 is: 656,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,384.59 : 879,654.27 = 475,959.39 : x
  2. Step 2: Convert to fraction form
    637,384.59/879,654.27 = 475,959.39/x
  3. Step 3: Cross multiply
    637,384.59x = 879,654.27 × 475,959.39
  4. Step 4: Simplify right side
    637,384.59x = 418,679,709,760.10
  5. Step 5: Solve for x
    x = 418,679,709,760.10/637,384.59
  6. Step 6: Final answer
    x = 656,871.40

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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.