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Finding the Fourth Proportional to 890,305.70, 1,335,458.55 and 801,659.30

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Solution

The fourth proportional to 890,305.70, 1,335,458.55 and 801,659.30 is: 1,202,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,305.70 : 1,335,458.55 = 801,659.30 : x
  2. Step 2: Convert to fraction form
    890,305.70/1,335,458.55 = 801,659.30/x
  3. Step 3: Cross multiply
    890,305.70x = 1,335,458.55 × 801,659.30
  4. Step 4: Simplify right side
    890,305.70x = 1,070,582,766,372.02
  5. Step 5: Solve for x
    x = 1,070,582,766,372.02/890,305.70
  6. Step 6: Final answer
    x = 1,202,488.95

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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.