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Finding the Fourth Proportional to 516,613.36, 774,549.70 and 242,906.38

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Solution

The fourth proportional to 516,613.36, 774,549.70 and 242,906.38 is: 364,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,613.36 : 774,549.70 = 242,906.38 : x
  2. Step 2: Convert to fraction form
    516,613.36/774,549.70 = 242,906.38/x
  3. Step 3: Cross multiply
    516,613.36x = 774,549.70 × 242,906.38
  4. Step 4: Simplify right side
    516,613.36x = 188,143,063,757.09
  5. Step 5: Solve for x
    x = 188,143,063,757.09/516,613.36
  6. Step 6: Final answer
    x = 364,185.44

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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.