Home / 3,120,156.60-4,680,234.90-1,523,743.80

Finding the Fourth Proportional to 3,120,156.60, 4,680,234.90 and 1,523,743.80

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Solution

The fourth proportional to 3,120,156.60, 4,680,234.90 and 1,523,743.80 is: 2,285,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,156.60 : 4,680,234.90 = 1,523,743.80 : x
  2. Step 2: Convert to fraction form
    3,120,156.60/4,680,234.90 = 1,523,743.80/x
  3. Step 3: Cross multiply
    3,120,156.60x = 4,680,234.90 × 1,523,743.80
  4. Step 4: Simplify right side
    3,120,156.60x = 7,131,478,911,418.62
  5. Step 5: Solve for x
    x = 7,131,478,911,418.62/3,120,156.60
  6. Step 6: Final answer
    x = 2,285,615.70

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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.