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Finding the Fourth Proportional to 668,729.80, 922,839.42 and 366,923.80

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Solution

The fourth proportional to 668,729.80, 922,839.42 and 366,923.80 is: 506,350.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,729.80 : 922,839.42 = 366,923.80 : x
  2. Step 2: Convert to fraction form
    668,729.80/922,839.42 = 366,923.80/x
  3. Step 3: Cross multiply
    668,729.80x = 922,839.42 × 366,923.80
  4. Step 4: Simplify right side
    668,729.80x = 338,611,746,776.20
  5. Step 5: Solve for x
    x = 338,611,746,776.20/668,729.80
  6. Step 6: Final answer
    x = 506,350.62

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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.