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Finding the Fourth Proportional to 425,416.32, 587,078.40 and 234,436.56

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Solution

The fourth proportional to 425,416.32, 587,078.40 and 234,436.56 is: 323,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,416.32 : 587,078.40 = 234,436.56 : x
  2. Step 2: Convert to fraction form
    425,416.32/587,078.40 = 234,436.56/x
  3. Step 3: Cross multiply
    425,416.32x = 587,078.40 × 234,436.56
  4. Step 4: Simplify right side
    425,416.32x = 137,632,640,546.30
  5. Step 5: Solve for x
    x = 137,632,640,546.30/425,416.32
  6. Step 6: Final answer
    x = 323,524.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.