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Finding the Fourth Proportional to 966,180.80, 1,449,616.80 and 405,387.20

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Solution

The fourth proportional to 966,180.80, 1,449,616.80 and 405,387.20 is: 608,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,180.80 : 1,449,616.80 = 405,387.20 : x
  2. Step 2: Convert to fraction form
    966,180.80/1,449,616.80 = 405,387.20/x
  3. Step 3: Cross multiply
    966,180.80x = 1,449,616.80 × 405,387.20
  4. Step 4: Simplify right side
    966,180.80x = 587,656,095,624.96
  5. Step 5: Solve for x
    x = 587,656,095,624.96/966,180.80
  6. Step 6: Final answer
    x = 608,225.81

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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.