Home / 428,710.24-591,577.49-247,480.56

Finding the Fourth Proportional to 428,710.24, 591,577.49 and 247,480.56

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Solution

The fourth proportional to 428,710.24, 591,577.49 and 247,480.56 is: 341,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.24 : 591,577.49 = 247,480.56 : x
  2. Step 2: Convert to fraction form
    428,710.24/591,577.49 = 247,480.56/x
  3. Step 3: Cross multiply
    428,710.24x = 591,577.49 × 247,480.56
  4. Step 4: Simplify right side
    428,710.24x = 146,403,928,508.59
  5. Step 5: Solve for x
    x = 146,403,928,508.59/428,710.24
  6. Step 6: Final answer
    x = 341,498.56

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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.