Home / 418,579.20-627,854.72-181,921.84

Finding the Fourth Proportional to 418,579.20, 627,854.72 and 181,921.84

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Solution

The fourth proportional to 418,579.20, 627,854.72 and 181,921.84 is: 272,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,579.20 : 627,854.72 = 181,921.84 : x
  2. Step 2: Convert to fraction form
    418,579.20/627,854.72 = 181,921.84/x
  3. Step 3: Cross multiply
    418,579.20x = 627,854.72 × 181,921.84
  4. Step 4: Simplify right side
    418,579.20x = 114,220,485,915.09
  5. Step 5: Solve for x
    x = 114,220,485,915.09/418,579.20
  6. Step 6: Final answer
    x = 272,876.64

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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.