Home / 792,077.70-1,188,116.55-661,440.90

Finding the Fourth Proportional to 792,077.70, 1,188,116.55 and 661,440.90

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Solution

The fourth proportional to 792,077.70, 1,188,116.55 and 661,440.90 is: 992,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,077.70 : 1,188,116.55 = 661,440.90 : x
  2. Step 2: Convert to fraction form
    792,077.70/1,188,116.55 = 661,440.90/x
  3. Step 3: Cross multiply
    792,077.70x = 1,188,116.55 × 661,440.90
  4. Step 4: Simplify right side
    792,077.70x = 785,868,880,136.90
  5. Step 5: Solve for x
    x = 785,868,880,136.90/792,077.70
  6. Step 6: Final answer
    x = 992,161.35

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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.