Home / 1,172,781.27-1,618,590.65-656,731.68

Finding the Fourth Proportional to 1,172,781.27, 1,618,590.65 and 656,731.68

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Solution

The fourth proportional to 1,172,781.27, 1,618,590.65 and 656,731.68 is: 906,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,781.27 : 1,618,590.65 = 656,731.68 : x
  2. Step 2: Convert to fraction form
    1,172,781.27/1,618,590.65 = 656,731.68/x
  3. Step 3: Cross multiply
    1,172,781.27x = 1,618,590.65 × 656,731.68
  4. Step 4: Simplify right side
    1,172,781.27x = 1,062,979,756,806.79
  5. Step 5: Solve for x
    x = 1,062,979,756,806.79/1,172,781.27
  6. Step 6: Final answer
    x = 906,375.11

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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.