Home / 721,353.33-1,082,327.94-316,335.89

Finding the Fourth Proportional to 721,353.33, 1,082,327.94 and 316,335.89

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Solution

The fourth proportional to 721,353.33, 1,082,327.94 and 316,335.89 is: 474,634.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,353.33 : 1,082,327.94 = 316,335.89 : x
  2. Step 2: Convert to fraction form
    721,353.33/1,082,327.94 = 316,335.89/x
  3. Step 3: Cross multiply
    721,353.33x = 1,082,327.94 × 316,335.89
  4. Step 4: Simplify right side
    721,353.33x = 342,379,166,760.13
  5. Step 5: Solve for x
    x = 342,379,166,760.13/721,353.33
  6. Step 6: Final answer
    x = 474,634.49

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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.