Home / 1,155,508.44-1,734,945.13-820,328.82

Finding the Fourth Proportional to 1,155,508.44, 1,734,945.13 and 820,328.82

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Solution

The fourth proportional to 1,155,508.44, 1,734,945.13 and 820,328.82 is: 1,231,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,508.44 : 1,734,945.13 = 820,328.82 : x
  2. Step 2: Convert to fraction form
    1,155,508.44/1,734,945.13 = 820,328.82/x
  3. Step 3: Cross multiply
    1,155,508.44x = 1,734,945.13 × 820,328.82
  4. Step 4: Simplify right side
    1,155,508.44x = 1,423,225,481,162.66
  5. Step 5: Solve for x
    x = 1,423,225,481,162.66/1,155,508.44
  6. Step 6: Final answer
    x = 1,231,687.66

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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.