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Finding the Fourth Proportional to 1,561,268, 2,154,549.84 and 845,876

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Solution

The fourth proportional to 1,561,268, 2,154,549.84 and 845,876 is: 1,167,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,268 : 2,154,549.84 = 845,876 : x
  2. Step 2: Convert to fraction form
    1,561,268/2,154,549.84 = 845,876/x
  3. Step 3: Cross multiply
    1,561,268x = 2,154,549.84 × 845,876
  4. Step 4: Simplify right side
    1,561,268x = 1,822,482,000,459.84
  5. Step 5: Solve for x
    x = 1,822,482,000,459.84/1,561,268
  6. Step 6: Final answer
    x = 1,167,308.88

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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.