Home / 991,238.46-1,486,858.87-271,586.29

Finding the Fourth Proportional to 991,238.46, 1,486,858.87 and 271,586.29

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Solution

The fourth proportional to 991,238.46, 1,486,858.87 and 271,586.29 is: 407,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,238.46 : 1,486,858.87 = 271,586.29 : x
  2. Step 2: Convert to fraction form
    991,238.46/1,486,858.87 = 271,586.29/x
  3. Step 3: Cross multiply
    991,238.46x = 1,486,858.87 × 271,586.29
  4. Step 4: Simplify right side
    991,238.46x = 403,810,487,466.97
  5. Step 5: Solve for x
    x = 403,810,487,466.97/991,238.46
  6. Step 6: Final answer
    x = 407,379.76

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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.