Home / 1,320,800.80-1,822,023.12-836,551.20

Finding the Fourth Proportional to 1,320,800.80, 1,822,023.12 and 836,551.20

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Solution

The fourth proportional to 1,320,800.80, 1,822,023.12 and 836,551.20 is: 1,154,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,800.80 : 1,822,023.12 = 836,551.20 : x
  2. Step 2: Convert to fraction form
    1,320,800.80/1,822,023.12 = 836,551.20/x
  3. Step 3: Cross multiply
    1,320,800.80x = 1,822,023.12 × 836,551.20
  4. Step 4: Simplify right side
    1,320,800.80x = 1,524,215,627,463.74
  5. Step 5: Solve for x
    x = 1,524,215,627,463.74/1,320,800.80
  6. Step 6: Final answer
    x = 1,154,008.71

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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.