Home / 1,561,330-2,154,635.40-845,938

Finding the Fourth Proportional to 1,561,330, 2,154,635.40 and 845,938

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Solution

The fourth proportional to 1,561,330, 2,154,635.40 and 845,938 is: 1,167,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,330 : 2,154,635.40 = 845,938 : x
  2. Step 2: Convert to fraction form
    1,561,330/2,154,635.40 = 845,938/x
  3. Step 3: Cross multiply
    1,561,330x = 2,154,635.40 × 845,938
  4. Step 4: Simplify right side
    1,561,330x = 1,822,687,961,005.20
  5. Step 5: Solve for x
    x = 1,822,687,961,005.20/1,561,330
  6. Step 6: Final answer
    x = 1,167,394.44

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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.