Home / 831,939.75-1,148,077.26-449,966.43

Finding the Fourth Proportional to 831,939.75, 1,148,077.26 and 449,966.43

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Solution

The fourth proportional to 831,939.75, 1,148,077.26 and 449,966.43 is: 620,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,939.75 : 1,148,077.26 = 449,966.43 : x
  2. Step 2: Convert to fraction form
    831,939.75/1,148,077.26 = 449,966.43/x
  3. Step 3: Cross multiply
    831,939.75x = 1,148,077.26 × 449,966.43
  4. Step 4: Simplify right side
    831,939.75x = 516,596,226,046.38
  5. Step 5: Solve for x
    x = 516,596,226,046.38/831,939.75
  6. Step 6: Final answer
    x = 620,953.89

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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.