Home / 485,989.27-670,652.25-271,123.81

Finding the Fourth Proportional to 485,989.27, 670,652.25 and 271,123.81

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Solution

The fourth proportional to 485,989.27, 670,652.25 and 271,123.81 is: 374,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,989.27 : 670,652.25 = 271,123.81 : x
  2. Step 2: Convert to fraction form
    485,989.27/670,652.25 = 271,123.81/x
  3. Step 3: Cross multiply
    485,989.27x = 670,652.25 × 271,123.81
  4. Step 4: Simplify right side
    485,989.27x = 181,829,793,205.07
  5. Step 5: Solve for x
    x = 181,829,793,205.07/485,989.27
  6. Step 6: Final answer
    x = 374,143.64

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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.