Home / 1,332,109.12-1,837,890.90-815,324.27

Finding the Fourth Proportional to 1,332,109.12, 1,837,890.90 and 815,324.27

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Solution

The fourth proportional to 1,332,109.12, 1,837,890.90 and 815,324.27 is: 1,124,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,109.12 : 1,837,890.90 = 815,324.27 : x
  2. Step 2: Convert to fraction form
    1,332,109.12/1,837,890.90 = 815,324.27/x
  3. Step 3: Cross multiply
    1,332,109.12x = 1,837,890.90 × 815,324.27
  4. Step 4: Simplify right side
    1,332,109.12x = 1,498,477,056,382.14
  5. Step 5: Solve for x
    x = 1,498,477,056,382.14/1,332,109.12
  6. Step 6: Final answer
    x = 1,124,890.62

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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.