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Finding the Fourth Proportional to 668,356.31, 922,390.03 and 366,608.63

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Solution

The fourth proportional to 668,356.31, 922,390.03 and 366,608.63 is: 505,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,356.31 : 922,390.03 = 366,608.63 : x
  2. Step 2: Convert to fraction form
    668,356.31/922,390.03 = 366,608.63/x
  3. Step 3: Cross multiply
    668,356.31x = 922,390.03 × 366,608.63
  4. Step 4: Simplify right side
    668,356.31x = 338,156,147,988.20
  5. Step 5: Solve for x
    x = 338,156,147,988.20/668,356.31
  6. Step 6: Final answer
    x = 505,951.90

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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.