Home / 1,217,540.56-1,826,258.44-318,962.40

Finding the Fourth Proportional to 1,217,540.56, 1,826,258.44 and 318,962.40

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Solution

The fourth proportional to 1,217,540.56, 1,826,258.44 and 318,962.40 is: 478,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,540.56 : 1,826,258.44 = 318,962.40 : x
  2. Step 2: Convert to fraction form
    1,217,540.56/1,826,258.44 = 318,962.40/x
  3. Step 3: Cross multiply
    1,217,540.56x = 1,826,258.44 × 318,962.40
  4. Step 4: Simplify right side
    1,217,540.56x = 582,507,775,042.66
  5. Step 5: Solve for x
    x = 582,507,775,042.66/1,217,540.56
  6. Step 6: Final answer
    x = 478,429.87

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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.