Home / 428,961.57-591,789.57-247,544.80

Finding the Fourth Proportional to 428,961.57, 591,789.57 and 247,544.80

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Solution

The fourth proportional to 428,961.57, 591,789.57 and 247,544.80 is: 341,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,961.57 : 591,789.57 = 247,544.80 : x
  2. Step 2: Convert to fraction form
    428,961.57/591,789.57 = 247,544.80/x
  3. Step 3: Cross multiply
    428,961.57x = 591,789.57 × 247,544.80
  4. Step 4: Simplify right side
    428,961.57x = 146,494,430,747.74
  5. Step 5: Solve for x
    x = 146,494,430,747.74/428,961.57
  6. Step 6: Final answer
    x = 341,509.45

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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.