Home / 852,158.20-1,278,237.30-538,007.80

Finding the Fourth Proportional to 852,158.20, 1,278,237.30 and 538,007.80

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Solution

The fourth proportional to 852,158.20, 1,278,237.30 and 538,007.80 is: 807,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,158.20 : 1,278,237.30 = 538,007.80 : x
  2. Step 2: Convert to fraction form
    852,158.20/1,278,237.30 = 538,007.80/x
  3. Step 3: Cross multiply
    852,158.20x = 1,278,237.30 × 538,007.80
  4. Step 4: Simplify right side
    852,158.20x = 687,701,637,650.94
  5. Step 5: Solve for x
    x = 687,701,637,650.94/852,158.20
  6. Step 6: Final answer
    x = 807,011.70

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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.