Home / 638,968.32-881,777.20-352,487.84

Finding the Fourth Proportional to 638,968.32, 881,777.20 and 352,487.84

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Solution

The fourth proportional to 638,968.32, 881,777.20 and 352,487.84 is: 486,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,968.32 : 881,777.20 = 352,487.84 : x
  2. Step 2: Convert to fraction form
    638,968.32/881,777.20 = 352,487.84/x
  3. Step 3: Cross multiply
    638,968.32x = 881,777.20 × 352,487.84
  4. Step 4: Simplify right side
    638,968.32x = 310,815,740,589.25
  5. Step 5: Solve for x
    x = 310,815,740,589.25/638,968.32
  6. Step 6: Final answer
    x = 486,433.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.