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Finding the Fourth Proportional to 386,127.44, 576,550.06 and 345,886.64

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Solution

The fourth proportional to 386,127.44, 576,550.06 and 345,886.64 is: 516,464.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,127.44 : 576,550.06 = 345,886.64 : x
  2. Step 2: Convert to fraction form
    386,127.44/576,550.06 = 345,886.64/x
  3. Step 3: Cross multiply
    386,127.44x = 576,550.06 × 345,886.64
  4. Step 4: Simplify right side
    386,127.44x = 199,420,963,045.20
  5. Step 5: Solve for x
    x = 199,420,963,045.20/386,127.44
  6. Step 6: Final answer
    x = 516,464.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.