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Finding the Fourth Proportional to 664,516.10, 997,758.30 and 514,925.30

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Solution

The fourth proportional to 664,516.10, 997,758.30 and 514,925.30 is: 773,150.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,516.10 : 997,758.30 = 514,925.30 : x
  2. Step 2: Convert to fraction form
    664,516.10/997,758.30 = 514,925.30/x
  3. Step 3: Cross multiply
    664,516.10x = 997,758.30 × 514,925.30
  4. Step 4: Simplify right side
    664,516.10x = 513,770,991,954.99
  5. Step 5: Solve for x
    x = 513,770,991,954.99/664,516.10
  6. Step 6: Final answer
    x = 773,150.56

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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.