Home / 428,903.78-591,824.49-247,586.90

Finding the Fourth Proportional to 428,903.78, 591,824.49 and 247,586.90

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Solution

The fourth proportional to 428,903.78, 591,824.49 and 247,586.90 is: 341,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,903.78 : 591,824.49 = 247,586.90 : x
  2. Step 2: Convert to fraction form
    428,903.78/591,824.49 = 247,586.90/x
  3. Step 3: Cross multiply
    428,903.78x = 591,824.49 × 247,586.90
  4. Step 4: Simplify right side
    428,903.78x = 146,527,990,823.18
  5. Step 5: Solve for x
    x = 146,527,990,823.18/428,903.78
  6. Step 6: Final answer
    x = 341,633.71

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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.