Home / 838,737.05-1,258,070.42-270,105.56

Finding the Fourth Proportional to 838,737.05, 1,258,070.42 and 270,105.56

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Solution

The fourth proportional to 838,737.05, 1,258,070.42 and 270,105.56 is: 405,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,737.05 : 1,258,070.42 = 270,105.56 : x
  2. Step 2: Convert to fraction form
    838,737.05/1,258,070.42 = 270,105.56/x
  3. Step 3: Cross multiply
    838,737.05x = 1,258,070.42 × 270,105.56
  4. Step 4: Simplify right side
    838,737.05x = 339,811,815,313.54
  5. Step 5: Solve for x
    x = 339,811,815,313.54/838,737.05
  6. Step 6: Final answer
    x = 405,147.02

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Double scale
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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.