Home / 989,085.36-1,481,931.38-664,264.60

Finding the Fourth Proportional to 989,085.36, 1,481,931.38 and 664,264.60

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Solution

The fourth proportional to 989,085.36, 1,481,931.38 and 664,264.60 is: 995,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,085.36 : 1,481,931.38 = 664,264.60 : x
  2. Step 2: Convert to fraction form
    989,085.36/1,481,931.38 = 664,264.60/x
  3. Step 3: Cross multiply
    989,085.36x = 1,481,931.38 × 664,264.60
  4. Step 4: Simplify right side
    989,085.36x = 984,394,553,318.98
  5. Step 5: Solve for x
    x = 984,394,553,318.98/989,085.36
  6. Step 6: Final answer
    x = 995,257.43

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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.