Home / 852,493.20-1,278,739.80-538,342.80

Finding the Fourth Proportional to 852,493.20, 1,278,739.80 and 538,342.80

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Solution

The fourth proportional to 852,493.20, 1,278,739.80 and 538,342.80 is: 807,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,493.20 : 1,278,739.80 = 538,342.80 : x
  2. Step 2: Convert to fraction form
    852,493.20/1,278,739.80 = 538,342.80/x
  3. Step 3: Cross multiply
    852,493.20x = 1,278,739.80 × 538,342.80
  4. Step 4: Simplify right side
    852,493.20x = 688,400,364,403.44
  5. Step 5: Solve for x
    x = 688,400,364,403.44/852,493.20
  6. Step 6: Final answer
    x = 807,514.20

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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.