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Finding the Fourth Proportional to 629,265, 868,714.02 and 489,253.14

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Solution

The fourth proportional to 629,265, 868,714.02 and 489,253.14 is: 675,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,265 : 868,714.02 = 489,253.14 : x
  2. Step 2: Convert to fraction form
    629,265/868,714.02 = 489,253.14/x
  3. Step 3: Cross multiply
    629,265x = 868,714.02 × 489,253.14
  4. Step 4: Simplify right side
    629,265x = 425,021,062,047.02
  5. Step 5: Solve for x
    x = 425,021,062,047.02/629,265
  6. Step 6: Final answer
    x = 675,424.60

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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.