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Finding the Fourth Proportional to 510,072.60, 765,108.90 and 454,960.20

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Solution

The fourth proportional to 510,072.60, 765,108.90 and 454,960.20 is: 682,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,072.60 : 765,108.90 = 454,960.20 : x
  2. Step 2: Convert to fraction form
    510,072.60/765,108.90 = 454,960.20/x
  3. Step 3: Cross multiply
    510,072.60x = 765,108.90 × 454,960.20
  4. Step 4: Simplify right side
    510,072.60x = 348,094,098,165.78
  5. Step 5: Solve for x
    x = 348,094,098,165.78/510,072.60
  6. Step 6: Final answer
    x = 682,440.30

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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.