Home / 421,970.29-582,324.51-230,979.58

Finding the Fourth Proportional to 421,970.29, 582,324.51 and 230,979.58

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Solution

The fourth proportional to 421,970.29, 582,324.51 and 230,979.58 is: 318,754.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,970.29 : 582,324.51 = 230,979.58 : x
  2. Step 2: Convert to fraction form
    421,970.29/582,324.51 = 230,979.58/x
  3. Step 3: Cross multiply
    421,970.29x = 582,324.51 × 230,979.58
  4. Step 4: Simplify right side
    421,970.29x = 134,505,070,743.51
  5. Step 5: Solve for x
    x = 134,505,070,743.51/421,970.29
  6. Step 6: Final answer
    x = 318,754.84

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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.