Home / 421,815.54-582,105.48-230,828.96

Finding the Fourth Proportional to 421,815.54, 582,105.48 and 230,828.96

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Solution

The fourth proportional to 421,815.54, 582,105.48 and 230,828.96 is: 318,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,815.54 : 582,105.48 = 230,828.96 : x
  2. Step 2: Convert to fraction form
    421,815.54/582,105.48 = 230,828.96/x
  3. Step 3: Cross multiply
    421,815.54x = 582,105.48 × 230,828.96
  4. Step 4: Simplify right side
    421,815.54x = 134,366,802,558.70
  5. Step 5: Solve for x
    x = 134,366,802,558.70/421,815.54
  6. Step 6: Final answer
    x = 318,543.98

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1.5x scale

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.