Home / 428,404.12-591,187.62-247,116.40

Finding the Fourth Proportional to 428,404.12, 591,187.62 and 247,116.40

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Solution

The fourth proportional to 428,404.12, 591,187.62 and 247,116.40 is: 341,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,404.12 : 591,187.62 = 247,116.40 : x
  2. Step 2: Convert to fraction form
    428,404.12/591,187.62 = 247,116.40/x
  3. Step 3: Cross multiply
    428,404.12x = 591,187.62 × 247,116.40
  4. Step 4: Simplify right side
    428,404.12x = 146,092,156,378.97
  5. Step 5: Solve for x
    x = 146,092,156,378.97/428,404.12
  6. Step 6: Final answer
    x = 341,014.83

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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.