Home / 1,231,857.28-1,847,507.28-389,949.76

Finding the Fourth Proportional to 1,231,857.28, 1,847,507.28 and 389,949.76

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Solution

The fourth proportional to 1,231,857.28, 1,847,507.28 and 389,949.76 is: 584,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,857.28 : 1,847,507.28 = 389,949.76 : x
  2. Step 2: Convert to fraction form
    1,231,857.28/1,847,507.28 = 389,949.76/x
  3. Step 3: Cross multiply
    1,231,857.28x = 1,847,507.28 × 389,949.76
  4. Step 4: Simplify right side
    1,231,857.28x = 720,435,020,434.25
  5. Step 5: Solve for x
    x = 720,435,020,434.25/1,231,857.28
  6. Step 6: Final answer
    x = 584,836.44

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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.