Home / 712,078.13-1,067,379.07-445,225.86

Finding the Fourth Proportional to 712,078.13, 1,067,379.07 and 445,225.86

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Solution

The fourth proportional to 712,078.13, 1,067,379.07 and 445,225.86 is: 667,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,078.13 : 1,067,379.07 = 445,225.86 : x
  2. Step 2: Convert to fraction form
    712,078.13/1,067,379.07 = 445,225.86/x
  3. Step 3: Cross multiply
    712,078.13x = 1,067,379.07 × 445,225.86
  4. Step 4: Simplify right side
    712,078.13x = 475,224,764,386.75
  5. Step 5: Solve for x
    x = 475,224,764,386.75/712,078.13
  6. Step 6: Final answer
    x = 667,377.28

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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.