Home / 1,108,488.65-1,530,127.87-862,986.96

Finding the Fourth Proportional to 1,108,488.65, 1,530,127.87 and 862,986.96

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Solution

The fourth proportional to 1,108,488.65, 1,530,127.87 and 862,986.96 is: 1,191,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,488.65 : 1,530,127.87 = 862,986.96 : x
  2. Step 2: Convert to fraction form
    1,108,488.65/1,530,127.87 = 862,986.96/x
  3. Step 3: Cross multiply
    1,108,488.65x = 1,530,127.87 × 862,986.96
  4. Step 4: Simplify right side
    1,108,488.65x = 1,320,480,396,785.11
  5. Step 5: Solve for x
    x = 1,320,480,396,785.11/1,108,488.65
  6. Step 6: Final answer
    x = 1,191,243.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.