Home / 1,217,540.55-1,826,258.42-318,962.39

Finding the Fourth Proportional to 1,217,540.55, 1,826,258.42 and 318,962.39

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Solution

The fourth proportional to 1,217,540.55, 1,826,258.42 and 318,962.39 is: 478,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,540.55 : 1,826,258.42 = 318,962.39 : x
  2. Step 2: Convert to fraction form
    1,217,540.55/1,826,258.42 = 318,962.39/x
  3. Step 3: Cross multiply
    1,217,540.55x = 1,826,258.42 × 318,962.39
  4. Step 4: Simplify right side
    1,217,540.55x = 582,507,746,523.19
  5. Step 5: Solve for x
    x = 582,507,746,523.19/1,217,540.55
  6. Step 6: Final answer
    x = 478,429.85

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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.