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Finding the Fourth Proportional to 1,200,959.56, 1,799,446.42 and 845,226.24

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Solution

The fourth proportional to 1,200,959.56, 1,799,446.42 and 845,226.24 is: 1,266,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,959.56 : 1,799,446.42 = 845,226.24 : x
  2. Step 2: Convert to fraction form
    1,200,959.56/1,799,446.42 = 845,226.24/x
  3. Step 3: Cross multiply
    1,200,959.56x = 1,799,446.42 × 845,226.24
  4. Step 4: Simplify right side
    1,200,959.56x = 1,520,939,325,966.67
  5. Step 5: Solve for x
    x = 1,520,939,325,966.67/1,200,959.56
  6. Step 6: Final answer
    x = 1,266,436.75

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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.