Home / 481,783.31-721,886.57-291,667.43

Finding the Fourth Proportional to 481,783.31, 721,886.57 and 291,667.43

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Solution

The fourth proportional to 481,783.31, 721,886.57 and 291,667.43 is: 437,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,783.31 : 721,886.57 = 291,667.43 : x
  2. Step 2: Convert to fraction form
    481,783.31/721,886.57 = 291,667.43/x
  3. Step 3: Cross multiply
    481,783.31x = 721,886.57 × 291,667.43
  4. Step 4: Simplify right side
    481,783.31x = 210,550,795,555.65
  5. Step 5: Solve for x
    x = 210,550,795,555.65/481,783.31
  6. Step 6: Final answer
    x = 437,023.85

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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.