Home / 989,125.20-1,481,938.20-926,139.60

Finding the Fourth Proportional to 989,125.20, 1,481,938.20 and 926,139.60

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Solution

The fourth proportional to 989,125.20, 1,481,938.20 and 926,139.60 is: 1,387,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,125.20 : 1,481,938.20 = 926,139.60 : x
  2. Step 2: Convert to fraction form
    989,125.20/1,481,938.20 = 926,139.60/x
  3. Step 3: Cross multiply
    989,125.20x = 1,481,938.20 × 926,139.60
  4. Step 4: Simplify right side
    989,125.20x = 1,372,481,651,772.72
  5. Step 5: Solve for x
    x = 1,372,481,651,772.72/989,125.20
  6. Step 6: Final answer
    x = 1,387,571.21

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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.