Home / 428,883.45-591,847.74-247,589.25

Finding the Fourth Proportional to 428,883.45, 591,847.74 and 247,589.25

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Solution

The fourth proportional to 428,883.45, 591,847.74 and 247,589.25 is: 341,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,883.45 : 591,847.74 = 247,589.25 : x
  2. Step 2: Convert to fraction form
    428,883.45/591,847.74 = 247,589.25/x
  3. Step 3: Cross multiply
    428,883.45x = 591,847.74 × 247,589.25
  4. Step 4: Simplify right side
    428,883.45x = 146,535,138,060.80
  5. Step 5: Solve for x
    x = 146,535,138,060.80/428,883.45
  6. Step 6: Final answer
    x = 341,666.57

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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.