Home / 1,025,974.35-1,538,697.87-485,697.87

Finding the Fourth Proportional to 1,025,974.35, 1,538,697.87 and 485,697.87

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Solution

The fourth proportional to 1,025,974.35, 1,538,697.87 and 485,697.87 is: 728,421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,974.35 : 1,538,697.87 = 485,697.87 : x
  2. Step 2: Convert to fraction form
    1,025,974.35/1,538,697.87 = 485,697.87/x
  3. Step 3: Cross multiply
    1,025,974.35x = 1,538,697.87 × 485,697.87
  4. Step 4: Simplify right side
    1,025,974.35x = 747,342,278,032.54
  5. Step 5: Solve for x
    x = 747,342,278,032.54/1,025,974.35
  6. Step 6: Final answer
    x = 728,421.99

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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.