Home / 958,406.31-1,322,600.81-528,687.54

Finding the Fourth Proportional to 958,406.31, 1,322,600.81 and 528,687.54

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Solution

The fourth proportional to 958,406.31, 1,322,600.81 and 528,687.54 is: 729,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,406.31 : 1,322,600.81 = 528,687.54 : x
  2. Step 2: Convert to fraction form
    958,406.31/1,322,600.81 = 528,687.54/x
  3. Step 3: Cross multiply
    958,406.31x = 1,322,600.81 × 528,687.54
  4. Step 4: Simplify right side
    958,406.31x = 699,242,565,997.47
  5. Step 5: Solve for x
    x = 699,242,565,997.47/958,406.31
  6. Step 6: Final answer
    x = 729,588.86

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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.