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Finding the Fourth Proportional to 898,292, 1,239,642.96 and 495,886.88

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Solution

The fourth proportional to 898,292, 1,239,642.96 and 495,886.88 is: 684,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,292 : 1,239,642.96 = 495,886.88 : x
  2. Step 2: Convert to fraction form
    898,292/1,239,642.96 = 495,886.88/x
  3. Step 3: Cross multiply
    898,292x = 1,239,642.96 × 495,886.88
  4. Step 4: Simplify right side
    898,292x = 614,722,679,748.37
  5. Step 5: Solve for x
    x = 614,722,679,748.37/898,292
  6. Step 6: Final answer
    x = 684,323.89

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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.