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Finding the Fourth Proportional to 381,027.60, 532,738.80 and 381,027.60

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Solution

The fourth proportional to 381,027.60, 532,738.80 and 381,027.60 is: 532,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,027.60 : 532,738.80 = 381,027.60 : x
  2. Step 2: Convert to fraction form
    381,027.60/532,738.80 = 381,027.60/x
  3. Step 3: Cross multiply
    381,027.60x = 532,738.80 × 381,027.60
  4. Step 4: Simplify right side
    381,027.60x = 202,988,186,390.88
  5. Step 5: Solve for x
    x = 202,988,186,390.88/381,027.60
  6. Step 6: Final answer
    x = 532,738.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.