Home / 997,220.60-1,493,724.90-660,422.60

Finding the Fourth Proportional to 997,220.60, 1,493,724.90 and 660,422.60

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Solution

The fourth proportional to 997,220.60, 1,493,724.90 and 660,422.60 is: 989,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,220.60 : 1,493,724.90 = 660,422.60 : x
  2. Step 2: Convert to fraction form
    997,220.60/1,493,724.90 = 660,422.60/x
  3. Step 3: Cross multiply
    997,220.60x = 1,493,724.90 × 660,422.60
  4. Step 4: Simplify right side
    997,220.60x = 986,489,682,142.74
  5. Step 5: Solve for x
    x = 986,489,682,142.74/997,220.60
  6. Step 6: Final answer
    x = 989,239.17

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1.5x scale

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.