Home / 1,187,215.30-1,780,822.95-809,301.70

Finding the Fourth Proportional to 1,187,215.30, 1,780,822.95 and 809,301.70

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Solution

The fourth proportional to 1,187,215.30, 1,780,822.95 and 809,301.70 is: 1,213,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,215.30 : 1,780,822.95 = 809,301.70 : x
  2. Step 2: Convert to fraction form
    1,187,215.30/1,780,822.95 = 809,301.70/x
  3. Step 3: Cross multiply
    1,187,215.30x = 1,780,822.95 × 809,301.70
  4. Step 4: Simplify right side
    1,187,215.30x = 1,441,223,040,834.02
  5. Step 5: Solve for x
    x = 1,441,223,040,834.02/1,187,215.30
  6. Step 6: Final answer
    x = 1,213,952.55

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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.