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Finding the Fourth Proportional to 668,376, 922,402.62 and 366,570

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Solution

The fourth proportional to 668,376, 922,402.62 and 366,570 is: 505,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,376 : 922,402.62 = 366,570 : x
  2. Step 2: Convert to fraction form
    668,376/922,402.62 = 366,570/x
  3. Step 3: Cross multiply
    668,376x = 922,402.62 × 366,570
  4. Step 4: Simplify right side
    668,376x = 338,125,128,413.40
  5. Step 5: Solve for x
    x = 338,125,128,413.40/668,376
  6. Step 6: Final answer
    x = 505,890.59

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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.