Home / 427,026.89-640,540.34-174,426.57

Finding the Fourth Proportional to 427,026.89, 640,540.34 and 174,426.57

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Solution

The fourth proportional to 427,026.89, 640,540.34 and 174,426.57 is: 261,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,026.89 : 640,540.34 = 174,426.57 : x
  2. Step 2: Convert to fraction form
    427,026.89/640,540.34 = 174,426.57/x
  3. Step 3: Cross multiply
    427,026.89x = 640,540.34 × 174,426.57
  4. Step 4: Simplify right side
    427,026.89x = 111,727,254,234.80
  5. Step 5: Solve for x
    x = 111,727,254,234.80/427,026.89
  6. Step 6: Final answer
    x = 261,639.86

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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.