Home / 539,022.40-807,853.20-272,856.40

Finding the Fourth Proportional to 539,022.40, 807,853.20 and 272,856.40

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Solution

The fourth proportional to 539,022.40, 807,853.20 and 272,856.40 is: 408,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,022.40 : 807,853.20 = 272,856.40 : x
  2. Step 2: Convert to fraction form
    539,022.40/807,853.20 = 272,856.40/x
  3. Step 3: Cross multiply
    539,022.40x = 807,853.20 × 272,856.40
  4. Step 4: Simplify right side
    539,022.40x = 220,427,915,880.48
  5. Step 5: Solve for x
    x = 220,427,915,880.48/539,022.40
  6. Step 6: Final answer
    x = 408,940.18

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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.