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Finding the Fourth Proportional to 664,516.60, 997,759.05 and 514,925.80

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Solution

The fourth proportional to 664,516.60, 997,759.05 and 514,925.80 is: 773,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,516.60 : 997,759.05 = 514,925.80 : x
  2. Step 2: Convert to fraction form
    664,516.60/997,759.05 = 514,925.80/x
  3. Step 3: Cross multiply
    664,516.60x = 997,759.05 × 514,925.80
  4. Step 4: Simplify right side
    664,516.60x = 513,771,877,028.49
  5. Step 5: Solve for x
    x = 513,771,877,028.49/664,516.60
  6. Step 6: Final answer
    x = 773,151.31

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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.