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Finding the Fourth Proportional to 617,402.66, 926,270.24 and 317,719.87

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Solution

The fourth proportional to 617,402.66, 926,270.24 and 317,719.87 is: 476,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,402.66 : 926,270.24 = 317,719.87 : x
  2. Step 2: Convert to fraction form
    617,402.66/926,270.24 = 317,719.87/x
  3. Step 3: Cross multiply
    617,402.66x = 926,270.24 × 317,719.87
  4. Step 4: Simplify right side
    617,402.66x = 294,294,456,333.39
  5. Step 5: Solve for x
    x = 294,294,456,333.39/617,402.66
  6. Step 6: Final answer
    x = 476,665.36

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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.