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Finding the Fourth Proportional to 617,613.28, 852,112.02 and 345,637.96

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Solution

The fourth proportional to 617,613.28, 852,112.02 and 345,637.96 is: 476,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,613.28 : 852,112.02 = 345,637.96 : x
  2. Step 2: Convert to fraction form
    617,613.28/852,112.02 = 345,637.96/x
  3. Step 3: Cross multiply
    617,613.28x = 852,112.02 × 345,637.96
  4. Step 4: Simplify right side
    617,613.28x = 294,522,260,284.28
  5. Step 5: Solve for x
    x = 294,522,260,284.28/617,613.28
  6. Step 6: Final answer
    x = 476,871.64

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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.