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Finding the Fourth Proportional to 428,977.22, 592,016.62 and 247,696.80

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Solution

The fourth proportional to 428,977.22, 592,016.62 and 247,696.80 is: 341,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,977.22 : 592,016.62 = 247,696.80 : x
  2. Step 2: Convert to fraction form
    428,977.22/592,016.62 = 247,696.80/x
  3. Step 3: Cross multiply
    428,977.22x = 592,016.62 × 247,696.80
  4. Step 4: Simplify right side
    428,977.22x = 146,640,622,320.82
  5. Step 5: Solve for x
    x = 146,640,622,320.82/428,977.22
  6. Step 6: Final answer
    x = 341,837.78

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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.