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Finding the Fourth Proportional to 497,680.20, 746,520.30 and 456,345.90

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Solution

The fourth proportional to 497,680.20, 746,520.30 and 456,345.90 is: 684,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,680.20 : 746,520.30 = 456,345.90 : x
  2. Step 2: Convert to fraction form
    497,680.20/746,520.30 = 456,345.90/x
  3. Step 3: Cross multiply
    497,680.20x = 746,520.30 × 456,345.90
  4. Step 4: Simplify right side
    497,680.20x = 340,671,478,171.77
  5. Step 5: Solve for x
    x = 340,671,478,171.77/497,680.20
  6. Step 6: Final answer
    x = 684,518.85

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Similar ratio
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1.5x scale

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.