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Finding the Fourth Proportional to 436,217.80, 654,326.70 and 310,246.60

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Solution

The fourth proportional to 436,217.80, 654,326.70 and 310,246.60 is: 465,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,217.80 : 654,326.70 = 310,246.60 : x
  2. Step 2: Convert to fraction form
    436,217.80/654,326.70 = 310,246.60/x
  3. Step 3: Cross multiply
    436,217.80x = 654,326.70 × 310,246.60
  4. Step 4: Simplify right side
    436,217.80x = 203,002,633,964.22
  5. Step 5: Solve for x
    x = 203,002,633,964.22/436,217.80
  6. Step 6: Final answer
    x = 465,369.90

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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.