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Finding the Fourth Proportional to 497,306.10, 744,209.55 and 455,315.70

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Solution

The fourth proportional to 497,306.10, 744,209.55 and 455,315.70 is: 681,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,306.10 : 744,209.55 = 455,315.70 : x
  2. Step 2: Convert to fraction form
    497,306.10/744,209.55 = 455,315.70/x
  3. Step 3: Cross multiply
    497,306.10x = 744,209.55 × 455,315.70
  4. Step 4: Simplify right side
    497,306.10x = 338,850,292,204.94
  5. Step 5: Solve for x
    x = 338,850,292,204.94/497,306.10
  6. Step 6: Final answer
    x = 681,371.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.