Home / 1,145,406.72-1,581,452.04-715,879.92

Finding the Fourth Proportional to 1,145,406.72, 1,581,452.04 and 715,879.92

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Solution

The fourth proportional to 1,145,406.72, 1,581,452.04 and 715,879.92 is: 988,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,406.72 : 1,581,452.04 = 715,879.92 : x
  2. Step 2: Convert to fraction form
    1,145,406.72/1,581,452.04 = 715,879.92/x
  3. Step 3: Cross multiply
    1,145,406.72x = 1,581,452.04 × 715,879.92
  4. Step 4: Simplify right side
    1,145,406.72x = 1,132,129,759,879.04
  5. Step 5: Solve for x
    x = 1,132,129,759,879.04/1,145,406.72
  6. Step 6: Final answer
    x = 988,408.52

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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.