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Finding the Fourth Proportional to 631,787.84, 871,766.40 and 359,861.04

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Solution

The fourth proportional to 631,787.84, 871,766.40 and 359,861.04 is: 496,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,787.84 : 871,766.40 = 359,861.04 : x
  2. Step 2: Convert to fraction form
    631,787.84/871,766.40 = 359,861.04/x
  3. Step 3: Cross multiply
    631,787.84x = 871,766.40 × 359,861.04
  4. Step 4: Simplify right side
    631,787.84x = 313,714,763,341.06
  5. Step 5: Solve for x
    x = 313,714,763,341.06/631,787.84
  6. Step 6: Final answer
    x = 496,550.81

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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.