Home / 3,490,847.12-5,227,872.60-1,990,390.16

Finding the Fourth Proportional to 3,490,847.12, 5,227,872.60 and 1,990,390.16

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Solution

The fourth proportional to 3,490,847.12, 5,227,872.60 and 1,990,390.16 is: 2,980,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490,847.12 : 5,227,872.60 = 1,990,390.16 : x
  2. Step 2: Convert to fraction form
    3,490,847.12/5,227,872.60 = 1,990,390.16/x
  3. Step 3: Cross multiply
    3,490,847.12x = 5,227,872.60 × 1,990,390.16
  4. Step 4: Simplify right side
    3,490,847.12x = 10,405,506,180,773.62
  5. Step 5: Solve for x
    x = 10,405,506,180,773.62/3,490,847.12
  6. Step 6: Final answer
    x = 2,980,796.87

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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.