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Finding the Fourth Proportional to 531,077.33, 797,310.45 and 315,329.85

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Solution

The fourth proportional to 531,077.33, 797,310.45 and 315,329.85 is: 473,407.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,077.33 : 797,310.45 = 315,329.85 : x
  2. Step 2: Convert to fraction form
    531,077.33/797,310.45 = 315,329.85/x
  3. Step 3: Cross multiply
    531,077.33x = 797,310.45 × 315,329.85
  4. Step 4: Simplify right side
    531,077.33x = 251,415,784,601.93
  5. Step 5: Solve for x
    x = 251,415,784,601.93/531,077.33
  6. Step 6: Final answer
    x = 473,407.11

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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.