Home / 428,414.48-591,201.86-237,423.76

Finding the Fourth Proportional to 428,414.48, 591,201.86 and 237,423.76

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Solution

The fourth proportional to 428,414.48, 591,201.86 and 237,423.76 is: 327,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,414.48 : 591,201.86 = 237,423.76 : x
  2. Step 2: Convert to fraction form
    428,414.48/591,201.86 = 237,423.76/x
  3. Step 3: Cross multiply
    428,414.48x = 591,201.86 × 237,423.76
  4. Step 4: Simplify right side
    428,414.48x = 140,365,368,520.19
  5. Step 5: Solve for x
    x = 140,365,368,520.19/428,414.48
  6. Step 6: Final answer
    x = 327,639.18

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1.5x scale

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.