Home / 421,815.67-582,105.66-230,829.07

Finding the Fourth Proportional to 421,815.67, 582,105.66 and 230,829.07

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Solution

The fourth proportional to 421,815.67, 582,105.66 and 230,829.07 is: 318,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,815.67 : 582,105.66 = 230,829.07 : x
  2. Step 2: Convert to fraction form
    421,815.67/582,105.66 = 230,829.07/x
  3. Step 3: Cross multiply
    421,815.67x = 582,105.66 × 230,829.07
  4. Step 4: Simplify right side
    421,815.67x = 134,366,906,985.39
  5. Step 5: Solve for x
    x = 134,366,906,985.39/421,815.67
  6. Step 6: Final answer
    x = 318,544.13

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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.