Home / 484,972.20-727,458.30-442,981.80

Finding the Fourth Proportional to 484,972.20, 727,458.30 and 442,981.80

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Solution

The fourth proportional to 484,972.20, 727,458.30 and 442,981.80 is: 664,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,972.20 : 727,458.30 = 442,981.80 : x
  2. Step 2: Convert to fraction form
    484,972.20/727,458.30 = 442,981.80/x
  3. Step 3: Cross multiply
    484,972.20x = 727,458.30 × 442,981.80
  4. Step 4: Simplify right side
    484,972.20x = 322,250,787,158.94
  5. Step 5: Solve for x
    x = 322,250,787,158.94/484,972.20
  6. Step 6: Final answer
    x = 664,472.70

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1.5x scale

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.