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Finding the Fourth Proportional to 1,951,427.80, 2,926,266.90 and 885,921.40

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Solution

The fourth proportional to 1,951,427.80, 2,926,266.90 and 885,921.40 is: 1,328,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951,427.80 : 2,926,266.90 = 885,921.40 : x
  2. Step 2: Convert to fraction form
    1,951,427.80/2,926,266.90 = 885,921.40/x
  3. Step 3: Cross multiply
    1,951,427.80x = 2,926,266.90 × 885,921.40
  4. Step 4: Simplify right side
    1,951,427.80x = 2,592,442,468,821.66
  5. Step 5: Solve for x
    x = 2,592,442,468,821.66/1,951,427.80
  6. Step 6: Final answer
    x = 1,328,484.95

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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.