Home / 529,760.39-731,049.18-288,043.16

Finding the Fourth Proportional to 529,760.39, 731,049.18 and 288,043.16

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Solution

The fourth proportional to 529,760.39, 731,049.18 and 288,043.16 is: 397,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,760.39 : 731,049.18 = 288,043.16 : x
  2. Step 2: Convert to fraction form
    529,760.39/731,049.18 = 288,043.16/x
  3. Step 3: Cross multiply
    529,760.39x = 731,049.18 × 288,043.16
  4. Step 4: Simplify right side
    529,760.39x = 210,573,711,187.20
  5. Step 5: Solve for x
    x = 210,573,711,187.20/529,760.39
  6. Step 6: Final answer
    x = 397,488.60

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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.