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Finding the Fourth Proportional to 444,981.78, 666,306.27 and 305,013.78

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Solution

The fourth proportional to 444,981.78, 666,306.27 and 305,013.78 is: 456,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,981.78 : 666,306.27 = 305,013.78 : x
  2. Step 2: Convert to fraction form
    444,981.78/666,306.27 = 305,013.78/x
  3. Step 3: Cross multiply
    444,981.78x = 666,306.27 × 305,013.78
  4. Step 4: Simplify right side
    444,981.78x = 203,232,594,050.40
  5. Step 5: Solve for x
    x = 203,232,594,050.40/444,981.78
  6. Step 6: Final answer
    x = 456,721.16

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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.