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Finding the Fourth Proportional to 668,126.12, 922,007.94 and 366,313.64

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Solution

The fourth proportional to 668,126.12, 922,007.94 and 366,313.64 is: 505,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,126.12 : 922,007.94 = 366,313.64 : x
  2. Step 2: Convert to fraction form
    668,126.12/922,007.94 = 366,313.64/x
  3. Step 3: Cross multiply
    668,126.12x = 922,007.94 × 366,313.64
  4. Step 4: Simplify right side
    668,126.12x = 337,744,084,610.30
  5. Step 5: Solve for x
    x = 337,744,084,610.30/668,126.12
  6. Step 6: Final answer
    x = 505,509.48

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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.