Home / 428,960.57-591,788.19-247,543.80

Finding the Fourth Proportional to 428,960.57, 591,788.19 and 247,543.80

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Solution

The fourth proportional to 428,960.57, 591,788.19 and 247,543.80 is: 341,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,960.57 : 591,788.19 = 247,543.80 : x
  2. Step 2: Convert to fraction form
    428,960.57/591,788.19 = 247,543.80/x
  3. Step 3: Cross multiply
    428,960.57x = 591,788.19 × 247,543.80
  4. Step 4: Simplify right side
    428,960.57x = 146,493,495,012.48
  5. Step 5: Solve for x
    x = 146,493,495,012.48/428,960.57
  6. Step 6: Final answer
    x = 341,508.07

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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.