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Finding the Fourth Proportional to 606,762, 837,331.92 and 338,490

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Solution

The fourth proportional to 606,762, 837,331.92 and 338,490 is: 467,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,762 : 837,331.92 = 338,490 : x
  2. Step 2: Convert to fraction form
    606,762/837,331.92 = 338,490/x
  3. Step 3: Cross multiply
    606,762x = 837,331.92 × 338,490
  4. Step 4: Simplify right side
    606,762x = 283,428,481,600.80
  5. Step 5: Solve for x
    x = 283,428,481,600.80/606,762
  6. Step 6: Final answer
    x = 467,116.40

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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.