Home / 991,240.46-1,486,861.86-271,588.30

Finding the Fourth Proportional to 991,240.46, 1,486,861.86 and 271,588.30

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Solution

The fourth proportional to 991,240.46, 1,486,861.86 and 271,588.30 is: 407,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,240.46 : 1,486,861.86 = 271,588.30 : x
  2. Step 2: Convert to fraction form
    991,240.46/1,486,861.86 = 271,588.30/x
  3. Step 3: Cross multiply
    991,240.46x = 1,486,861.86 × 271,588.30
  4. Step 4: Simplify right side
    991,240.46x = 403,814,284,892.24
  5. Step 5: Solve for x
    x = 403,814,284,892.24/991,240.46
  6. Step 6: Final answer
    x = 407,382.77

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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.