Home / 790,711.62-1,090,366.43-676,368.78

Finding the Fourth Proportional to 790,711.62, 1,090,366.43 and 676,368.78

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Solution

The fourth proportional to 790,711.62, 1,090,366.43 and 676,368.78 is: 932,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,711.62 : 1,090,366.43 = 676,368.78 : x
  2. Step 2: Convert to fraction form
    790,711.62/1,090,366.43 = 676,368.78/x
  3. Step 3: Cross multiply
    790,711.62x = 1,090,366.43 × 676,368.78
  4. Step 4: Simplify right side
    790,711.62x = 737,489,808,630.21
  5. Step 5: Solve for x
    x = 737,489,808,630.21/790,711.62
  6. Step 6: Final answer
    x = 932,691.25

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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.