Home / 1,326,115.62-1,989,187.31-1,061,557.86

Finding the Fourth Proportional to 1,326,115.62, 1,989,187.31 and 1,061,557.86

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Solution

The fourth proportional to 1,326,115.62, 1,989,187.31 and 1,061,557.86 is: 1,592,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,115.62 : 1,989,187.31 = 1,061,557.86 : x
  2. Step 2: Convert to fraction form
    1,326,115.62/1,989,187.31 = 1,061,557.86/x
  3. Step 3: Cross multiply
    1,326,115.62x = 1,989,187.31 × 1,061,557.86
  4. Step 4: Simplify right side
    1,326,115.62x = 2,111,637,418,634.97
  5. Step 5: Solve for x
    x = 2,111,637,418,634.97/1,326,115.62
  6. Step 6: Final answer
    x = 1,592,347.90

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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.