Home / 543,628.20-815,442.02-169,651.20

Finding the Fourth Proportional to 543,628.20, 815,442.02 and 169,651.20

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Solution

The fourth proportional to 543,628.20, 815,442.02 and 169,651.20 is: 254,476.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,628.20 : 815,442.02 = 169,651.20 : x
  2. Step 2: Convert to fraction form
    543,628.20/815,442.02 = 169,651.20/x
  3. Step 3: Cross multiply
    543,628.20x = 815,442.02 × 169,651.20
  4. Step 4: Simplify right side
    543,628.20x = 138,340,717,223.42
  5. Step 5: Solve for x
    x = 138,340,717,223.42/543,628.20
  6. Step 6: Final answer
    x = 254,476.71

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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.