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Finding the Fourth Proportional to 396,612.31, 594,918.62 and 216,599.28

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Solution

The fourth proportional to 396,612.31, 594,918.62 and 216,599.28 is: 324,899.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,612.31 : 594,918.62 = 216,599.28 : x
  2. Step 2: Convert to fraction form
    396,612.31/594,918.62 = 216,599.28/x
  3. Step 3: Cross multiply
    396,612.31x = 594,918.62 × 216,599.28
  4. Step 4: Simplify right side
    396,612.31x = 128,858,946,697.92
  5. Step 5: Solve for x
    x = 128,858,946,697.92/396,612.31
  6. Step 6: Final answer
    x = 324,899.01

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1.5x scale

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.