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Finding the Fourth Proportional to 668,235.42, 922,206.87 and 366,429.42

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Solution

The fourth proportional to 668,235.42, 922,206.87 and 366,429.42 is: 505,695.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,235.42 : 922,206.87 = 366,429.42 : x
  2. Step 2: Convert to fraction form
    668,235.42/922,206.87 = 366,429.42/x
  3. Step 3: Cross multiply
    668,235.42x = 922,206.87 × 366,429.42
  4. Step 4: Simplify right side
    668,235.42x = 337,923,728,494.12
  5. Step 5: Solve for x
    x = 337,923,728,494.12/668,235.42
  6. Step 6: Final answer
    x = 505,695.63

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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.