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Finding the Fourth Proportional to 632,978.58, 948,811.77 and 395,776.56

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Solution

The fourth proportional to 632,978.58, 948,811.77 and 395,776.56 is: 593,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,978.58 : 948,811.77 = 395,776.56 : x
  2. Step 2: Convert to fraction form
    632,978.58/948,811.77 = 395,776.56/x
  3. Step 3: Cross multiply
    632,978.58x = 948,811.77 × 395,776.56
  4. Step 4: Simplify right side
    632,978.58x = 375,517,458,418.11
  5. Step 5: Solve for x
    x = 375,517,458,418.11/632,978.58
  6. Step 6: Final answer
    x = 593,254.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.