Home / 419,975.60-579,581.76-238,718.02

Finding the Fourth Proportional to 419,975.60, 579,581.76 and 238,718.02

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Solution

The fourth proportional to 419,975.60, 579,581.76 and 238,718.02 is: 329,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,975.60 : 579,581.76 = 238,718.02 : x
  2. Step 2: Convert to fraction form
    419,975.60/579,581.76 = 238,718.02/x
  3. Step 3: Cross multiply
    419,975.60x = 579,581.76 × 238,718.02
  4. Step 4: Simplify right side
    419,975.60x = 138,356,610,175.32
  5. Step 5: Solve for x
    x = 138,356,610,175.32/419,975.60
  6. Step 6: Final answer
    x = 329,439.64

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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.