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Finding the Fourth Proportional to 634,251.25, 875,726 and 408,290.41

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Solution

The fourth proportional to 634,251.25, 875,726 and 408,290.41 is: 563,736.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,251.25 : 875,726 = 408,290.41 : x
  2. Step 2: Convert to fraction form
    634,251.25/875,726 = 408,290.41/x
  3. Step 3: Cross multiply
    634,251.25x = 875,726 × 408,290.41
  4. Step 4: Simplify right side
    634,251.25x = 357,550,527,587.66
  5. Step 5: Solve for x
    x = 357,550,527,587.66/634,251.25
  6. Step 6: Final answer
    x = 563,736.42

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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.