Home / 1,231,858.28-1,847,508.78-389,950.76

Finding the Fourth Proportional to 1,231,858.28, 1,847,508.78 and 389,950.76

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Solution

The fourth proportional to 1,231,858.28, 1,847,508.78 and 389,950.76 is: 584,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,858.28 : 1,847,508.78 = 389,950.76 : x
  2. Step 2: Convert to fraction form
    1,231,858.28/1,847,508.78 = 389,950.76/x
  3. Step 3: Cross multiply
    1,231,858.28x = 1,847,508.78 × 389,950.76
  4. Step 4: Simplify right side
    1,231,858.28x = 720,437,452,867.67
  5. Step 5: Solve for x
    x = 720,437,452,867.67/1,231,858.28
  6. Step 6: Final answer
    x = 584,837.94

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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.