Home / 778,892.49-1,169,335.22-661,310.91

Finding the Fourth Proportional to 778,892.49, 1,169,335.22 and 661,310.91

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Solution

The fourth proportional to 778,892.49, 1,169,335.22 and 661,310.91 is: 992,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,892.49 : 1,169,335.22 = 661,310.91 : x
  2. Step 2: Convert to fraction form
    778,892.49/1,169,335.22 = 661,310.91/x
  3. Step 3: Cross multiply
    778,892.49x = 1,169,335.22 × 661,310.91
  4. Step 4: Simplify right side
    778,892.49x = 773,294,135,126.70
  5. Step 5: Solve for x
    x = 773,294,135,126.70/778,892.49
  6. Step 6: Final answer
    x = 992,812.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.