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Finding the Fourth Proportional to 497,115.70, 745,673.55 and 455,125.30

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Solution

The fourth proportional to 497,115.70, 745,673.55 and 455,125.30 is: 682,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,115.70 : 745,673.55 = 455,125.30 : x
  2. Step 2: Convert to fraction form
    497,115.70/745,673.55 = 455,125.30/x
  3. Step 3: Cross multiply
    497,115.70x = 745,673.55 × 455,125.30
  4. Step 4: Simplify right side
    497,115.70x = 339,374,898,145.82
  5. Step 5: Solve for x
    x = 339,374,898,145.82/497,115.70
  6. Step 6: Final answer
    x = 682,687.95

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Similar ratio
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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.