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Finding the Fourth Proportional to 436,327.20, 654,490.80 and 303,616.80

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Solution

The fourth proportional to 436,327.20, 654,490.80 and 303,616.80 is: 455,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,327.20 : 654,490.80 = 303,616.80 : x
  2. Step 2: Convert to fraction form
    436,327.20/654,490.80 = 303,616.80/x
  3. Step 3: Cross multiply
    436,327.20x = 654,490.80 × 303,616.80
  4. Step 4: Simplify right side
    436,327.20x = 198,714,402,325.44
  5. Step 5: Solve for x
    x = 198,714,402,325.44/436,327.20
  6. Step 6: Final answer
    x = 455,425.20

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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.