Home / 3,120,459.70-4,680,689.55-2,649,234.10

Finding the Fourth Proportional to 3,120,459.70, 4,680,689.55 and 2,649,234.10

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Solution

The fourth proportional to 3,120,459.70, 4,680,689.55 and 2,649,234.10 is: 3,973,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,459.70 : 4,680,689.55 = 2,649,234.10 : x
  2. Step 2: Convert to fraction form
    3,120,459.70/4,680,689.55 = 2,649,234.10/x
  3. Step 3: Cross multiply
    3,120,459.70x = 4,680,689.55 × 2,649,234.10
  4. Step 4: Simplify right side
    3,120,459.70x = 12,400,242,367,373.65
  5. Step 5: Solve for x
    x = 12,400,242,367,373.65/3,120,459.70
  6. Step 6: Final answer
    x = 3,973,851.15

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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.