Home / 1,288,500.90-1,930,908.15-948,891.30

Finding the Fourth Proportional to 1,288,500.90, 1,930,908.15 and 948,891.30

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Solution

The fourth proportional to 1,288,500.90, 1,930,908.15 and 948,891.30 is: 1,421,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,500.90 : 1,930,908.15 = 948,891.30 : x
  2. Step 2: Convert to fraction form
    1,288,500.90/1,930,908.15 = 948,891.30/x
  3. Step 3: Cross multiply
    1,288,500.90x = 1,930,908.15 × 948,891.30
  4. Step 4: Simplify right side
    1,288,500.90x = 1,832,221,944,634.10
  5. Step 5: Solve for x
    x = 1,832,221,944,634.10/1,288,500.90
  6. Step 6: Final answer
    x = 1,421,979.56

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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.