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Finding the Fourth Proportional to 451,212.40, 676,818.60 and 283,250.80

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Solution

The fourth proportional to 451,212.40, 676,818.60 and 283,250.80 is: 424,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,212.40 : 676,818.60 = 283,250.80 : x
  2. Step 2: Convert to fraction form
    451,212.40/676,818.60 = 283,250.80/x
  3. Step 3: Cross multiply
    451,212.40x = 676,818.60 × 283,250.80
  4. Step 4: Simplify right side
    451,212.40x = 191,709,409,904.88
  5. Step 5: Solve for x
    x = 191,709,409,904.88/451,212.40
  6. Step 6: Final answer
    x = 424,876.20

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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.