Home / 1,098,212.40-1,647,588.60-378,565.20

Finding the Fourth Proportional to 1,098,212.40, 1,647,588.60 and 378,565.20

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Solution

The fourth proportional to 1,098,212.40, 1,647,588.60 and 378,565.20 is: 567,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,212.40 : 1,647,588.60 = 378,565.20 : x
  2. Step 2: Convert to fraction form
    1,098,212.40/1,647,588.60 = 378,565.20/x
  3. Step 3: Cross multiply
    1,098,212.40x = 1,647,588.60 × 378,565.20
  4. Step 4: Simplify right side
    1,098,212.40x = 623,719,707,876.72
  5. Step 5: Solve for x
    x = 623,719,707,876.72/1,098,212.40
  6. Step 6: Final answer
    x = 567,940.87

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1.5x scale

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.