Home / 831,538.49-1,147,523.20-449,565.17

Finding the Fourth Proportional to 831,538.49, 1,147,523.20 and 449,565.17

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Solution

The fourth proportional to 831,538.49, 1,147,523.20 and 449,565.17 is: 620,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,538.49 : 1,147,523.20 = 449,565.17 : x
  2. Step 2: Convert to fraction form
    831,538.49/1,147,523.20 = 449,565.17/x
  3. Step 3: Cross multiply
    831,538.49x = 1,147,523.20 × 449,565.17
  4. Step 4: Simplify right side
    831,538.49x = 515,886,455,625.42
  5. Step 5: Solve for x
    x = 515,886,455,625.42/831,538.49
  6. Step 6: Final answer
    x = 620,399.98

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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.