Home / 782,179.44-1,079,422.95-510,421.20

Finding the Fourth Proportional to 782,179.44, 1,079,422.95 and 510,421.20

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Solution

The fourth proportional to 782,179.44, 1,079,422.95 and 510,421.20 is: 704,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,179.44 : 1,079,422.95 = 510,421.20 : x
  2. Step 2: Convert to fraction form
    782,179.44/1,079,422.95 = 510,421.20/x
  3. Step 3: Cross multiply
    782,179.44x = 1,079,422.95 × 510,421.20
  4. Step 4: Simplify right side
    782,179.44x = 550,960,357,446.54
  5. Step 5: Solve for x
    x = 550,960,357,446.54/782,179.44
  6. Step 6: Final answer
    x = 704,391.26

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.