Home / 810,778.66-1,118,867.16-448,211.86

Finding the Fourth Proportional to 810,778.66, 1,118,867.16 and 448,211.86

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Solution

The fourth proportional to 810,778.66, 1,118,867.16 and 448,211.86 is: 618,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,778.66 : 1,118,867.16 = 448,211.86 : x
  2. Step 2: Convert to fraction form
    810,778.66/1,118,867.16 = 448,211.86/x
  3. Step 3: Cross multiply
    810,778.66x = 1,118,867.16 × 448,211.86
  4. Step 4: Simplify right side
    810,778.66x = 501,489,530,876.52
  5. Step 5: Solve for x
    x = 501,489,530,876.52/810,778.66
  6. Step 6: Final answer
    x = 618,528.28

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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.