Home / 1,215,025.60-1,676,701.20-671,151.28

Finding the Fourth Proportional to 1,215,025.60, 1,676,701.20 and 671,151.28

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Solution

The fourth proportional to 1,215,025.60, 1,676,701.20 and 671,151.28 is: 926,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,025.60 : 1,676,701.20 = 671,151.28 : x
  2. Step 2: Convert to fraction form
    1,215,025.60/1,676,701.20 = 671,151.28/x
  3. Step 3: Cross multiply
    1,215,025.60x = 1,676,701.20 × 671,151.28
  4. Step 4: Simplify right side
    1,215,025.60x = 1,125,320,156,557.54
  5. Step 5: Solve for x
    x = 1,125,320,156,557.54/1,215,025.60
  6. Step 6: Final answer
    x = 926,169.91

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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.