Home / 529,761.20-731,066.65-288,043.70

Finding the Fourth Proportional to 529,761.20, 731,066.65 and 288,043.70

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Solution

The fourth proportional to 529,761.20, 731,066.65 and 288,043.70 is: 397,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,761.20 : 731,066.65 = 288,043.70 : x
  2. Step 2: Convert to fraction form
    529,761.20/731,066.65 = 288,043.70/x
  3. Step 3: Cross multiply
    529,761.20x = 731,066.65 × 288,043.70
  4. Step 4: Simplify right side
    529,761.20x = 210,579,138,437.16
  5. Step 5: Solve for x
    x = 210,579,138,437.16/529,761.20
  6. Step 6: Final answer
    x = 397,498.23

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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.