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Finding the Fourth Proportional to 404,435.88, 558,009.54 and 261,201.96

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Solution

The fourth proportional to 404,435.88, 558,009.54 and 261,201.96 is: 360,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,435.88 : 558,009.54 = 261,201.96 : x
  2. Step 2: Convert to fraction form
    404,435.88/558,009.54 = 261,201.96/x
  3. Step 3: Cross multiply
    404,435.88x = 558,009.54 × 261,201.96
  4. Step 4: Simplify right side
    404,435.88x = 145,753,185,546.70
  5. Step 5: Solve for x
    x = 145,753,185,546.70/404,435.88
  6. Step 6: Final answer
    x = 360,386.39

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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.