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Finding the Fourth Proportional to 531,305.64, 733,195.33 and 289,587.47

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Solution

The fourth proportional to 531,305.64, 733,195.33 and 289,587.47 is: 399,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,305.64 : 733,195.33 = 289,587.47 : x
  2. Step 2: Convert to fraction form
    531,305.64/733,195.33 = 289,587.47/x
  3. Step 3: Cross multiply
    531,305.64x = 733,195.33 × 289,587.47
  4. Step 4: Simplify right side
    531,305.64x = 212,324,180,630.52
  5. Step 5: Solve for x
    x = 212,324,180,630.52/531,305.64
  6. Step 6: Final answer
    x = 399,627.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.