Home / 727,042.74-1,002,665.79-455,135.40

Finding the Fourth Proportional to 727,042.74, 1,002,665.79 and 455,135.40

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Solution

The fourth proportional to 727,042.74, 1,002,665.79 and 455,135.40 is: 627,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,042.74 : 1,002,665.79 = 455,135.40 : x
  2. Step 2: Convert to fraction form
    727,042.74/1,002,665.79 = 455,135.40/x
  3. Step 3: Cross multiply
    727,042.74x = 1,002,665.79 × 455,135.40
  4. Step 4: Simplify right side
    727,042.74x = 456,348,695,397.97
  5. Step 5: Solve for x
    x = 456,348,695,397.97/727,042.74
  6. Step 6: Final answer
    x = 627,677.95

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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.