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Finding the Fourth Proportional to 624,621.60, 936,792 and 287,338.41

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Solution

The fourth proportional to 624,621.60, 936,792 and 287,338.41 is: 430,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,621.60 : 936,792 = 287,338.41 : x
  2. Step 2: Convert to fraction form
    624,621.60/936,792 = 287,338.41/x
  3. Step 3: Cross multiply
    624,621.60x = 936,792 × 287,338.41
  4. Step 4: Simplify right side
    624,621.60x = 269,176,323,780.72
  5. Step 5: Solve for x
    x = 269,176,323,780.72/624,621.60
  6. Step 6: Final answer
    x = 430,943.03

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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.