Home / 393,041.09-589,561.78-123,190.18

Finding the Fourth Proportional to 393,041.09, 589,561.78 and 123,190.18

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Solution

The fourth proportional to 393,041.09, 589,561.78 and 123,190.18 is: 184,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,041.09 : 589,561.78 = 123,190.18 : x
  2. Step 2: Convert to fraction form
    393,041.09/589,561.78 = 123,190.18/x
  3. Step 3: Cross multiply
    393,041.09x = 589,561.78 × 123,190.18
  4. Step 4: Simplify right side
    393,041.09x = 72,628,221,799.32
  5. Step 5: Solve for x
    x = 72,628,221,799.32/393,041.09
  6. Step 6: Final answer
    x = 184,785.32

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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.