Home / 428,392.17-641,566.80-248,096.66

Finding the Fourth Proportional to 428,392.17, 641,566.80 and 248,096.66

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Solution

The fourth proportional to 428,392.17, 641,566.80 and 248,096.66 is: 371,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,392.17 : 641,566.80 = 248,096.66 : x
  2. Step 2: Convert to fraction form
    428,392.17/641,566.80 = 248,096.66/x
  3. Step 3: Cross multiply
    428,392.17x = 641,566.80 × 248,096.66
  4. Step 4: Simplify right side
    428,392.17x = 159,170,577,039.05
  5. Step 5: Solve for x
    x = 159,170,577,039.05/428,392.17
  6. Step 6: Final answer
    x = 371,553.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.