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Finding the Fourth Proportional to 638,227.73, 880,742.86 and 347,841.92

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Solution

The fourth proportional to 638,227.73, 880,742.86 and 347,841.92 is: 480,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,227.73 : 880,742.86 = 347,841.92 : x
  2. Step 2: Convert to fraction form
    638,227.73/880,742.86 = 347,841.92/x
  3. Step 3: Cross multiply
    638,227.73x = 880,742.86 × 347,841.92
  4. Step 4: Simplify right side
    638,227.73x = 306,359,282,175.37
  5. Step 5: Solve for x
    x = 306,359,282,175.37/638,227.73
  6. Step 6: Final answer
    x = 480,015.63

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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.