Home / 513,723.40-770,585.10-324,766.60

Finding the Fourth Proportional to 513,723.40, 770,585.10 and 324,766.60

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Solution

The fourth proportional to 513,723.40, 770,585.10 and 324,766.60 is: 487,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,723.40 : 770,585.10 = 324,766.60 : x
  2. Step 2: Convert to fraction form
    513,723.40/770,585.10 = 324,766.60/x
  3. Step 3: Cross multiply
    513,723.40x = 770,585.10 × 324,766.60
  4. Step 4: Simplify right side
    513,723.40x = 250,260,302,937.66
  5. Step 5: Solve for x
    x = 250,260,302,937.66/513,723.40
  6. Step 6: Final answer
    x = 487,149.90

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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.