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Finding the Fourth Proportional to 898,291, 1,239,641.58 and 495,885.88

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Solution

The fourth proportional to 898,291, 1,239,641.58 and 495,885.88 is: 684,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,291 : 1,239,641.58 = 495,885.88 : x
  2. Step 2: Convert to fraction form
    898,291/1,239,641.58 = 495,885.88/x
  3. Step 3: Cross multiply
    898,291x = 1,239,641.58 × 495,885.88
  4. Step 4: Simplify right side
    898,291x = 614,720,755,782.89
  5. Step 5: Solve for x
    x = 614,720,755,782.89/898,291
  6. Step 6: Final answer
    x = 684,322.51

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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.