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Finding the Fourth Proportional to 668,799.72, 922,906.98 and 366,969.96

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Solution

The fourth proportional to 668,799.72, 922,906.98 and 366,969.96 is: 506,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,799.72 : 922,906.98 = 366,969.96 : x
  2. Step 2: Convert to fraction form
    668,799.72/922,906.98 = 366,969.96/x
  3. Step 3: Cross multiply
    668,799.72x = 922,906.98 × 366,969.96
  4. Step 4: Simplify right side
    668,799.72x = 338,679,137,534.32
  5. Step 5: Solve for x
    x = 338,679,137,534.32/668,799.72
  6. Step 6: Final answer
    x = 506,398.44

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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.