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Finding the Fourth Proportional to 617,676.55, 852,387.69 and 355,935.69

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Solution

The fourth proportional to 617,676.55, 852,387.69 and 355,935.69 is: 491,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,676.55 : 852,387.69 = 355,935.69 : x
  2. Step 2: Convert to fraction form
    617,676.55/852,387.69 = 355,935.69/x
  3. Step 3: Cross multiply
    617,676.55x = 852,387.69 × 355,935.69
  4. Step 4: Simplify right side
    617,676.55x = 303,395,200,587.66
  5. Step 5: Solve for x
    x = 303,395,200,587.66/617,676.55
  6. Step 6: Final answer
    x = 491,187.83

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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.