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Finding the Fourth Proportional to 898,274.88, 1,239,624 and 495,866.88

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Solution

The fourth proportional to 898,274.88, 1,239,624 and 495,866.88 is: 684,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,274.88 : 1,239,624 = 495,866.88 : x
  2. Step 2: Convert to fraction form
    898,274.88/1,239,624 = 495,866.88/x
  3. Step 3: Cross multiply
    898,274.88x = 1,239,624 × 495,866.88
  4. Step 4: Simplify right side
    898,274.88x = 614,688,485,253.12
  5. Step 5: Solve for x
    x = 614,688,485,253.12/898,274.88
  6. Step 6: Final answer
    x = 684,298.87

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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.