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Finding the Fourth Proportional to 663,244.40, 993,311.40 and 451,737.20

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Solution

The fourth proportional to 663,244.40, 993,311.40 and 451,737.20 is: 676,546.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,244.40 : 993,311.40 = 451,737.20 : x
  2. Step 2: Convert to fraction form
    663,244.40/993,311.40 = 451,737.20/x
  3. Step 3: Cross multiply
    663,244.40x = 993,311.40 × 451,737.20
  4. Step 4: Simplify right side
    663,244.40x = 448,715,710,564.08
  5. Step 5: Solve for x
    x = 448,715,710,564.08/663,244.40
  6. Step 6: Final answer
    x = 676,546.55

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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.