Home / 498,631.80-747,947.70-288,023.70

Finding the Fourth Proportional to 498,631.80, 747,947.70 and 288,023.70

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Solution

The fourth proportional to 498,631.80, 747,947.70 and 288,023.70 is: 432,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,631.80 : 747,947.70 = 288,023.70 : x
  2. Step 2: Convert to fraction form
    498,631.80/747,947.70 = 288,023.70/x
  3. Step 3: Cross multiply
    498,631.80x = 747,947.70 × 288,023.70
  4. Step 4: Simplify right side
    498,631.80x = 215,426,663,960.49
  5. Step 5: Solve for x
    x = 215,426,663,960.49/498,631.80
  6. Step 6: Final answer
    x = 432,035.55

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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.