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Finding the Fourth Proportional to 489,200.80, 733,801.20 and 450,709.60

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Solution

The fourth proportional to 489,200.80, 733,801.20 and 450,709.60 is: 676,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,200.80 : 733,801.20 = 450,709.60 : x
  2. Step 2: Convert to fraction form
    489,200.80/733,801.20 = 450,709.60/x
  3. Step 3: Cross multiply
    489,200.80x = 733,801.20 × 450,709.60
  4. Step 4: Simplify right side
    489,200.80x = 330,731,245,331.52
  5. Step 5: Solve for x
    x = 330,731,245,331.52/489,200.80
  6. Step 6: Final answer
    x = 676,064.40

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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.