Home / 421,815.04-582,104.80-230,828.46

Finding the Fourth Proportional to 421,815.04, 582,104.80 and 230,828.46

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Solution

The fourth proportional to 421,815.04, 582,104.80 and 230,828.46 is: 318,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,815.04 : 582,104.80 = 230,828.46 : x
  2. Step 2: Convert to fraction form
    421,815.04/582,104.80 = 230,828.46/x
  3. Step 3: Cross multiply
    421,815.04x = 582,104.80 × 230,828.46
  4. Step 4: Simplify right side
    421,815.04x = 134,366,354,542.61
  5. Step 5: Solve for x
    x = 134,366,354,542.61/421,815.04
  6. Step 6: Final answer
    x = 318,543.30

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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.