Home / 467,678.16-645,611.76-274,059

Finding the Fourth Proportional to 467,678.16, 645,611.76 and 274,059

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Solution

The fourth proportional to 467,678.16, 645,611.76 and 274,059 is: 378,327.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,678.16 : 645,611.76 = 274,059 : x
  2. Step 2: Convert to fraction form
    467,678.16/645,611.76 = 274,059/x
  3. Step 3: Cross multiply
    467,678.16x = 645,611.76 × 274,059
  4. Step 4: Simplify right side
    467,678.16x = 176,935,713,333.84
  5. Step 5: Solve for x
    x = 176,935,713,333.84/467,678.16
  6. Step 6: Final answer
    x = 378,327.94

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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.