Home / 852,155.20-1,278,232.80-538,004.80

Finding the Fourth Proportional to 852,155.20, 1,278,232.80 and 538,004.80

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Solution

The fourth proportional to 852,155.20, 1,278,232.80 and 538,004.80 is: 807,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,155.20 : 1,278,232.80 = 538,004.80 : x
  2. Step 2: Convert to fraction form
    852,155.20/1,278,232.80 = 538,004.80/x
  3. Step 3: Cross multiply
    852,155.20x = 1,278,232.80 × 538,004.80
  4. Step 4: Simplify right side
    852,155.20x = 687,695,381,917.44
  5. Step 5: Solve for x
    x = 687,695,381,917.44/852,155.20
  6. Step 6: Final answer
    x = 807,007.20

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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.