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Finding the Fourth Proportional to 622,792.80, 934,140.60 and 243,639.90

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Solution

The fourth proportional to 622,792.80, 934,140.60 and 243,639.90 is: 365,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,792.80 : 934,140.60 = 243,639.90 : x
  2. Step 2: Convert to fraction form
    622,792.80/934,140.60 = 243,639.90/x
  3. Step 3: Cross multiply
    622,792.80x = 934,140.60 × 243,639.90
  4. Step 4: Simplify right side
    622,792.80x = 227,593,922,369.94
  5. Step 5: Solve for x
    x = 227,593,922,369.94/622,792.80
  6. Step 6: Final answer
    x = 365,440.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.