Home / 2,086,862.60-3,129,140.46-647,146.76

Finding the Fourth Proportional to 2,086,862.60, 3,129,140.46 and 647,146.76

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Solution

The fourth proportional to 2,086,862.60, 3,129,140.46 and 647,146.76 is: 970,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,862.60 : 3,129,140.46 = 647,146.76 : x
  2. Step 2: Convert to fraction form
    2,086,862.60/3,129,140.46 = 647,146.76/x
  3. Step 3: Cross multiply
    2,086,862.60x = 3,129,140.46 × 647,146.76
  4. Step 4: Simplify right side
    2,086,862.60x = 2,025,013,110,273.91
  5. Step 5: Solve for x
    x = 2,025,013,110,273.91/2,086,862.60
  6. Step 6: Final answer
    x = 970,362.45

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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.