Home / 1,986,150.60-2,980,457.10-1,040,200.20

Finding the Fourth Proportional to 1,986,150.60, 2,980,457.10 and 1,040,200.20

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Solution

The fourth proportional to 1,986,150.60, 2,980,457.10 and 1,040,200.20 is: 1,560,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,150.60 : 2,980,457.10 = 1,040,200.20 : x
  2. Step 2: Convert to fraction form
    1,986,150.60/2,980,457.10 = 1,040,200.20/x
  3. Step 3: Cross multiply
    1,986,150.60x = 2,980,457.10 × 1,040,200.20
  4. Step 4: Simplify right side
    1,986,150.60x = 3,100,272,071,511.42
  5. Step 5: Solve for x
    x = 3,100,272,071,511.42/1,986,150.60
  6. Step 6: Final answer
    x = 1,560,945.11

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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.