Home / 758,546.60-1,137,819.90-489,108.20

Finding the Fourth Proportional to 758,546.60, 1,137,819.90 and 489,108.20

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Solution

The fourth proportional to 758,546.60, 1,137,819.90 and 489,108.20 is: 733,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,546.60 : 1,137,819.90 = 489,108.20 : x
  2. Step 2: Convert to fraction form
    758,546.60/1,137,819.90 = 489,108.20/x
  3. Step 3: Cross multiply
    758,546.60x = 1,137,819.90 × 489,108.20
  4. Step 4: Simplify right side
    758,546.60x = 556,517,043,213.18
  5. Step 5: Solve for x
    x = 556,517,043,213.18/758,546.60
  6. Step 6: Final answer
    x = 733,662.30

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Double scale
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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.