Home / 1,326,138.54-1,989,221.68-1,061,580.84

Finding the Fourth Proportional to 1,326,138.54, 1,989,221.68 and 1,061,580.84

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Solution

The fourth proportional to 1,326,138.54, 1,989,221.68 and 1,061,580.84 is: 1,592,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,138.54 : 1,989,221.68 = 1,061,580.84 : x
  2. Step 2: Convert to fraction form
    1,326,138.54/1,989,221.68 = 1,061,580.84/x
  3. Step 3: Cross multiply
    1,326,138.54x = 1,989,221.68 × 1,061,580.84
  4. Step 4: Simplify right side
    1,326,138.54x = 2,111,719,622,000.61
  5. Step 5: Solve for x
    x = 2,111,719,622,000.61/1,326,138.54
  6. Step 6: Final answer
    x = 1,592,382.36

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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.