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Finding the Fourth Proportional to 513,219.70, 769,829.55 and 463,453.30

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Solution

The fourth proportional to 513,219.70, 769,829.55 and 463,453.30 is: 695,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,219.70 : 769,829.55 = 463,453.30 : x
  2. Step 2: Convert to fraction form
    513,219.70/769,829.55 = 463,453.30/x
  3. Step 3: Cross multiply
    513,219.70x = 769,829.55 × 463,453.30
  4. Step 4: Simplify right side
    513,219.70x = 356,780,045,385.02
  5. Step 5: Solve for x
    x = 356,780,045,385.02/513,219.70
  6. Step 6: Final answer
    x = 695,179.95

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Double scale
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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.