Home / 558,015.48-768,759.66-387,954.36

Finding the Fourth Proportional to 558,015.48, 768,759.66 and 387,954.36

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Solution

The fourth proportional to 558,015.48, 768,759.66 and 387,954.36 is: 534,472.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,015.48 : 768,759.66 = 387,954.36 : x
  2. Step 2: Convert to fraction form
    558,015.48/768,759.66 = 387,954.36/x
  3. Step 3: Cross multiply
    558,015.48x = 768,759.66 × 387,954.36
  4. Step 4: Simplify right side
    558,015.48x = 298,243,661,889.12
  5. Step 5: Solve for x
    x = 298,243,661,889.12/558,015.48
  6. Step 6: Final answer
    x = 534,472.02

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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.