Home / 485,733.65-727,960.77-272,497.50

Finding the Fourth Proportional to 485,733.65, 727,960.77 and 272,497.50

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Solution

The fourth proportional to 485,733.65, 727,960.77 and 272,497.50 is: 408,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,733.65 : 727,960.77 = 272,497.50 : x
  2. Step 2: Convert to fraction form
    485,733.65/727,960.77 = 272,497.50/x
  3. Step 3: Cross multiply
    485,733.65x = 727,960.77 × 272,497.50
  4. Step 4: Simplify right side
    485,733.65x = 198,367,489,923.08
  5. Step 5: Solve for x
    x = 198,367,489,923.08/485,733.65
  6. Step 6: Final answer
    x = 408,387.38

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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.