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Finding the Fourth Proportional to 634,500, 875,687.76 and 366,228

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Solution

The fourth proportional to 634,500, 875,687.76 and 366,228 is: 505,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,500 : 875,687.76 = 366,228 : x
  2. Step 2: Convert to fraction form
    634,500/875,687.76 = 366,228/x
  3. Step 3: Cross multiply
    634,500x = 875,687.76 × 366,228
  4. Step 4: Simplify right side
    634,500x = 320,701,376,969.28
  5. Step 5: Solve for x
    x = 320,701,376,969.28/634,500
  6. Step 6: Final answer
    x = 505,439.52

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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.