Home / 485,200,280.80-726,288,766.80-349,151,384.80

Finding the Fourth Proportional to 485,200,280.80, 726,288,766.80 and 349,151,384.80

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Solution

The fourth proportional to 485,200,280.80, 726,288,766.80 and 349,151,384.80 is: 522,639,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,200,280.80 : 726,288,766.80 = 349,151,384.80 : x
  2. Step 2: Convert to fraction form
    485,200,280.80/726,288,766.80 = 349,151,384.80/x
  3. Step 3: Cross multiply
    485,200,280.80x = 726,288,766.80 × 349,151,384.80
  4. Step 4: Simplify right side
    485,200,280.80x = 253,584,728,692,904,256
  5. Step 5: Solve for x
    x = 253,584,728,692,904,256/485,200,280.80
  6. Step 6: Final answer
    x = 522,639,286.76

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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.