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Finding the Fourth Proportional to 410,142.30, 615,213.45 and 404,612.70

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Solution

The fourth proportional to 410,142.30, 615,213.45 and 404,612.70 is: 606,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,142.30 : 615,213.45 = 404,612.70 : x
  2. Step 2: Convert to fraction form
    410,142.30/615,213.45 = 404,612.70/x
  3. Step 3: Cross multiply
    410,142.30x = 615,213.45 × 404,612.70
  4. Step 4: Simplify right side
    410,142.30x = 248,923,175,080.82
  5. Step 5: Solve for x
    x = 248,923,175,080.82/410,142.30
  6. Step 6: Final answer
    x = 606,919.05

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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.