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Finding the Fourth Proportional to 497,768.10, 746,652.15 and 420,008.10

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Solution

The fourth proportional to 497,768.10, 746,652.15 and 420,008.10 is: 630,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,768.10 : 746,652.15 = 420,008.10 : x
  2. Step 2: Convert to fraction form
    497,768.10/746,652.15 = 420,008.10/x
  3. Step 3: Cross multiply
    497,768.10x = 746,652.15 × 420,008.10
  4. Step 4: Simplify right side
    497,768.10x = 313,599,950,882.42
  5. Step 5: Solve for x
    x = 313,599,950,882.42/497,768.10
  6. Step 6: Final answer
    x = 630,012.15

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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.