Home / 1,119,405.15-1,543,559.49-756,198.72

Finding the Fourth Proportional to 1,119,405.15, 1,543,559.49 and 756,198.72

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Solution

The fourth proportional to 1,119,405.15, 1,543,559.49 and 756,198.72 is: 1,042,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,405.15 : 1,543,559.49 = 756,198.72 : x
  2. Step 2: Convert to fraction form
    1,119,405.15/1,543,559.49 = 756,198.72/x
  3. Step 3: Cross multiply
    1,119,405.15x = 1,543,559.49 × 756,198.72
  4. Step 4: Simplify right side
    1,119,405.15x = 1,167,237,710,581.85
  5. Step 5: Solve for x
    x = 1,167,237,710,581.85/1,119,405.15
  6. Step 6: Final answer
    x = 1,042,730.34

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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.