Home / 1,025,287.80-1,538,078.76-315,375.72

Finding the Fourth Proportional to 1,025,287.80, 1,538,078.76 and 315,375.72

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Solution

The fourth proportional to 1,025,287.80, 1,538,078.76 and 315,375.72 is: 473,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,287.80 : 1,538,078.76 = 315,375.72 : x
  2. Step 2: Convert to fraction form
    1,025,287.80/1,538,078.76 = 315,375.72/x
  3. Step 3: Cross multiply
    1,025,287.80x = 1,538,078.76 × 315,375.72
  4. Step 4: Simplify right side
    1,025,287.80x = 485,072,696,351.71
  5. Step 5: Solve for x
    x = 485,072,696,351.71/1,025,287.80
  6. Step 6: Final answer
    x = 473,108.82

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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.