Home / 393,040.09-589,560.28-123,189.18

Finding the Fourth Proportional to 393,040.09, 589,560.28 and 123,189.18

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Solution

The fourth proportional to 393,040.09, 589,560.28 and 123,189.18 is: 184,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,040.09 : 589,560.28 = 123,189.18 : x
  2. Step 2: Convert to fraction form
    393,040.09/589,560.28 = 123,189.18/x
  3. Step 3: Cross multiply
    393,040.09x = 589,560.28 × 123,189.18
  4. Step 4: Simplify right side
    393,040.09x = 72,627,444,934.95
  5. Step 5: Solve for x
    x = 72,627,444,934.95/393,040.09
  6. Step 6: Final answer
    x = 184,783.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.