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Finding the Fourth Proportional to 451,215.40, 676,823.10 and 283,253.80

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Solution

The fourth proportional to 451,215.40, 676,823.10 and 283,253.80 is: 424,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,215.40 : 676,823.10 = 283,253.80 : x
  2. Step 2: Convert to fraction form
    451,215.40/676,823.10 = 283,253.80/x
  3. Step 3: Cross multiply
    451,215.40x = 676,823.10 × 283,253.80
  4. Step 4: Simplify right side
    451,215.40x = 191,712,715,002.78
  5. Step 5: Solve for x
    x = 191,712,715,002.78/451,215.40
  6. Step 6: Final answer
    x = 424,880.70

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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.