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Finding the Fourth Proportional to 476,487.70, 657,553.97 and 258,696.61

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Solution

The fourth proportional to 476,487.70, 657,553.97 and 258,696.61 is: 357,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,487.70 : 657,553.97 = 258,696.61 : x
  2. Step 2: Convert to fraction form
    476,487.70/657,553.97 = 258,696.61/x
  3. Step 3: Cross multiply
    476,487.70x = 657,553.97 × 258,696.61
  4. Step 4: Simplify right side
    476,487.70x = 170,106,981,933.90
  5. Step 5: Solve for x
    x = 170,106,981,933.90/476,487.70
  6. Step 6: Final answer
    x = 357,001.83

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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.