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Finding the Fourth Proportional to 644,151.26, 888,914.98 and 357,666.41

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Solution

The fourth proportional to 644,151.26, 888,914.98 and 357,666.41 is: 493,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,151.26 : 888,914.98 = 357,666.41 : x
  2. Step 2: Convert to fraction form
    644,151.26/888,914.98 = 357,666.41/x
  3. Step 3: Cross multiply
    644,151.26x = 888,914.98 × 357,666.41
  4. Step 4: Simplify right side
    644,151.26x = 317,935,029,691.82
  5. Step 5: Solve for x
    x = 317,935,029,691.82/644,151.26
  6. Step 6: Final answer
    x = 493,572.01

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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.