Home / 484,980.20-727,470.30-442,989.80

Finding the Fourth Proportional to 484,980.20, 727,470.30 and 442,989.80

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Solution

The fourth proportional to 484,980.20, 727,470.30 and 442,989.80 is: 664,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,980.20 : 727,470.30 = 442,989.80 : x
  2. Step 2: Convert to fraction form
    484,980.20/727,470.30 = 442,989.80/x
  3. Step 3: Cross multiply
    484,980.20x = 727,470.30 × 442,989.80
  4. Step 4: Simplify right side
    484,980.20x = 322,261,922,702.94
  5. Step 5: Solve for x
    x = 322,261,922,702.94/484,980.20
  6. Step 6: Final answer
    x = 664,484.70

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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.