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Finding the Fourth Proportional to 617,957.06, 927,438.42 and 318,523.27

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Solution

The fourth proportional to 617,957.06, 927,438.42 and 318,523.27 is: 478,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,957.06 : 927,438.42 = 318,523.27 : x
  2. Step 2: Convert to fraction form
    617,957.06/927,438.42 = 318,523.27/x
  3. Step 3: Cross multiply
    617,957.06x = 927,438.42 × 318,523.27
  4. Step 4: Simplify right side
    617,957.06x = 295,410,717,085.15
  5. Step 5: Solve for x
    x = 295,410,717,085.15/617,957.06
  6. Step 6: Final answer
    x = 478,044.09

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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.