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Finding the Fourth Proportional to 898,272, 1,239,617.52 and 495,864

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Solution

The fourth proportional to 898,272, 1,239,617.52 and 495,864 is: 684,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,272 : 1,239,617.52 = 495,864 : x
  2. Step 2: Convert to fraction form
    898,272/1,239,617.52 = 495,864/x
  3. Step 3: Cross multiply
    898,272x = 1,239,617.52 × 495,864
  4. Step 4: Simplify right side
    898,272x = 614,681,701,937.28
  5. Step 5: Solve for x
    x = 614,681,701,937.28/898,272
  6. Step 6: Final answer
    x = 684,293.51

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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.