Home / 1,340,487.42-2,012,163.60-542,290.74

Finding the Fourth Proportional to 1,340,487.42, 2,012,163.60 and 542,290.74

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Solution

The fourth proportional to 1,340,487.42, 2,012,163.60 and 542,290.74 is: 814,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,487.42 : 2,012,163.60 = 542,290.74 : x
  2. Step 2: Convert to fraction form
    1,340,487.42/2,012,163.60 = 542,290.74/x
  3. Step 3: Cross multiply
    1,340,487.42x = 2,012,163.60 × 542,290.74
  4. Step 4: Simplify right side
    1,340,487.42x = 1,091,177,687,645.06
  5. Step 5: Solve for x
    x = 1,091,177,687,645.06/1,340,487.42
  6. Step 6: Final answer
    x = 814,015.61

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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.