Home / 693,631.20-1,040,024.40-272,402.40

Finding the Fourth Proportional to 693,631.20, 1,040,024.40 and 272,402.40

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Solution

The fourth proportional to 693,631.20, 1,040,024.40 and 272,402.40 is: 408,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,631.20 : 1,040,024.40 = 272,402.40 : x
  2. Step 2: Convert to fraction form
    693,631.20/1,040,024.40 = 272,402.40/x
  3. Step 3: Cross multiply
    693,631.20x = 1,040,024.40 × 272,402.40
  4. Step 4: Simplify right side
    693,631.20x = 283,305,142,618.56
  5. Step 5: Solve for x
    x = 283,305,142,618.56/693,631.20
  6. Step 6: Final answer
    x = 408,437.72

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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.