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Finding the Fourth Proportional to 1,159,281.90, 1,738,922.85 and 804,987.90

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Solution

The fourth proportional to 1,159,281.90, 1,738,922.85 and 804,987.90 is: 1,207,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,281.90 : 1,738,922.85 = 804,987.90 : x
  2. Step 2: Convert to fraction form
    1,159,281.90/1,738,922.85 = 804,987.90/x
  3. Step 3: Cross multiply
    1,159,281.90x = 1,738,922.85 × 804,987.90
  4. Step 4: Simplify right side
    1,159,281.90x = 1,399,811,853,283.52
  5. Step 5: Solve for x
    x = 1,399,811,853,283.52/1,159,281.90
  6. Step 6: Final answer
    x = 1,207,481.85

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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.