Home / 1,011,919.43-1,517,879.14-380,974.79

Finding the Fourth Proportional to 1,011,919.43, 1,517,879.14 and 380,974.79

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Solution

The fourth proportional to 1,011,919.43, 1,517,879.14 and 380,974.79 is: 571,462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,919.43 : 1,517,879.14 = 380,974.79 : x
  2. Step 2: Convert to fraction form
    1,011,919.43/1,517,879.14 = 380,974.79/x
  3. Step 3: Cross multiply
    1,011,919.43x = 1,517,879.14 × 380,974.79
  4. Step 4: Simplify right side
    1,011,919.43x = 578,273,686,606.88
  5. Step 5: Solve for x
    x = 578,273,686,606.88/1,011,919.43
  6. Step 6: Final answer
    x = 571,462.18

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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.