Home / 921,508.25-1,382,164.16-322,480.85

Finding the Fourth Proportional to 921,508.25, 1,382,164.16 and 322,480.85

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Solution

The fourth proportional to 921,508.25, 1,382,164.16 and 322,480.85 is: 483,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,508.25 : 1,382,164.16 = 322,480.85 : x
  2. Step 2: Convert to fraction form
    921,508.25/1,382,164.16 = 322,480.85/x
  3. Step 3: Cross multiply
    921,508.25x = 1,382,164.16 × 322,480.85
  4. Step 4: Simplify right side
    921,508.25x = 445,721,464,633.11
  5. Step 5: Solve for x
    x = 445,721,464,633.11/921,508.25
  6. Step 6: Final answer
    x = 483,686.90

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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.