Home / 1,391,552.87-2,084,932.85-1,087,828.88

Finding the Fourth Proportional to 1,391,552.87, 2,084,932.85 and 1,087,828.88

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Solution

The fourth proportional to 1,391,552.87, 2,084,932.85 and 1,087,828.88 is: 1,629,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,552.87 : 2,084,932.85 = 1,087,828.88 : x
  2. Step 2: Convert to fraction form
    1,391,552.87/2,084,932.85 = 1,087,828.88/x
  3. Step 3: Cross multiply
    1,391,552.87x = 2,084,932.85 × 1,087,828.88
  4. Step 4: Simplify right side
    1,391,552.87x = 2,268,050,151,226.90
  5. Step 5: Solve for x
    x = 2,268,050,151,226.90/1,391,552.87
  6. Step 6: Final answer
    x = 1,629,869.92

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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.