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Finding the Fourth Proportional to 550,372.80, 825,559.20 and 471,640.80

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Solution

The fourth proportional to 550,372.80, 825,559.20 and 471,640.80 is: 707,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,372.80 : 825,559.20 = 471,640.80 : x
  2. Step 2: Convert to fraction form
    550,372.80/825,559.20 = 471,640.80/x
  3. Step 3: Cross multiply
    550,372.80x = 825,559.20 × 471,640.80
  4. Step 4: Simplify right side
    550,372.80x = 389,367,401,535.36
  5. Step 5: Solve for x
    x = 389,367,401,535.36/550,372.80
  6. Step 6: Final answer
    x = 707,461.20

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Similar ratio
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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.