Home / 478,922.56-718,175.63-137,290.75

Finding the Fourth Proportional to 478,922.56, 718,175.63 and 137,290.75

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Solution

The fourth proportional to 478,922.56, 718,175.63 and 137,290.75 is: 205,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,922.56 : 718,175.63 = 137,290.75 : x
  2. Step 2: Convert to fraction form
    478,922.56/718,175.63 = 137,290.75/x
  3. Step 3: Cross multiply
    478,922.56x = 718,175.63 × 137,290.75
  4. Step 4: Simplify right side
    478,922.56x = 98,598,869,422.21
  5. Step 5: Solve for x
    x = 98,598,869,422.21/478,922.56
  6. Step 6: Final answer
    x = 205,876.44

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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.