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Finding the Fourth Proportional to 703,520.31, 970,858.85 and 381,227.59

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Solution

The fourth proportional to 703,520.31, 970,858.85 and 381,227.59 is: 526,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,520.31 : 970,858.85 = 381,227.59 : x
  2. Step 2: Convert to fraction form
    703,520.31/970,858.85 = 381,227.59/x
  3. Step 3: Cross multiply
    703,520.31x = 970,858.85 × 381,227.59
  4. Step 4: Simplify right side
    703,520.31x = 370,118,177,800.87
  5. Step 5: Solve for x
    x = 370,118,177,800.87/703,520.31
  6. Step 6: Final answer
    x = 526,094.52

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Double scale
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Similar ratio
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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.