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Finding the Fourth Proportional to 624,600.80, 861,916.44 and 366,441.86

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Solution

The fourth proportional to 624,600.80, 861,916.44 and 366,441.86 is: 505,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,600.80 : 861,916.44 = 366,441.86 : x
  2. Step 2: Convert to fraction form
    624,600.80/861,916.44 = 366,441.86/x
  3. Step 3: Cross multiply
    624,600.80x = 861,916.44 × 366,441.86
  4. Step 4: Simplify right side
    624,600.80x = 315,842,263,438.18
  5. Step 5: Solve for x
    x = 315,842,263,438.18/624,600.80
  6. Step 6: Final answer
    x = 505,670.60

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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.