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Finding the Fourth Proportional to 668,644, 922,744.92 and 366,838

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Solution

The fourth proportional to 668,644, 922,744.92 and 366,838 is: 506,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,644 : 922,744.92 = 366,838 : x
  2. Step 2: Convert to fraction form
    668,644/922,744.92 = 366,838/x
  3. Step 3: Cross multiply
    668,644x = 922,744.92 × 366,838
  4. Step 4: Simplify right side
    668,644x = 338,497,900,962.96
  5. Step 5: Solve for x
    x = 338,497,900,962.96/668,644
  6. Step 6: Final answer
    x = 506,245.33

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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.