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Finding the Fourth Proportional to 550,343.70, 825,515.55 and 361,386.90

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Solution

The fourth proportional to 550,343.70, 825,515.55 and 361,386.90 is: 542,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,343.70 : 825,515.55 = 361,386.90 : x
  2. Step 2: Convert to fraction form
    550,343.70/825,515.55 = 361,386.90/x
  3. Step 3: Cross multiply
    550,343.70x = 825,515.55 × 361,386.90
  4. Step 4: Simplify right side
    550,343.70x = 298,330,505,516.30
  5. Step 5: Solve for x
    x = 298,330,505,516.30/550,343.70
  6. Step 6: Final answer
    x = 542,080.35

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Similar ratio
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1.5x scale

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.