Home / 428,710.38-591,577.67-247,480.69

Finding the Fourth Proportional to 428,710.38, 591,577.67 and 247,480.69

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Solution

The fourth proportional to 428,710.38, 591,577.67 and 247,480.69 is: 341,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.38 : 591,577.67 = 247,480.69 : x
  2. Step 2: Convert to fraction form
    428,710.38/591,577.67 = 247,480.69/x
  3. Step 3: Cross multiply
    428,710.38x = 591,577.67 × 247,480.69
  4. Step 4: Simplify right side
    428,710.38x = 146,404,049,960.19
  5. Step 5: Solve for x
    x = 146,404,049,960.19/428,710.38
  6. Step 6: Final answer
    x = 341,498.73

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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.