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Finding the Fourth Proportional to 537,287.68, 741,481.92 and 310,889.28

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Solution

The fourth proportional to 537,287.68, 741,481.92 and 310,889.28 is: 429,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,287.68 : 741,481.92 = 310,889.28 : x
  2. Step 2: Convert to fraction form
    537,287.68/741,481.92 = 310,889.28/x
  3. Step 3: Cross multiply
    537,287.68x = 741,481.92 × 310,889.28
  4. Step 4: Simplify right side
    537,287.68x = 230,518,780,241.82
  5. Step 5: Solve for x
    x = 230,518,780,241.82/537,287.68
  6. Step 6: Final answer
    x = 429,041.63

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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.