Home / 905,965.75-1,250,200.88-498,064.62

Finding the Fourth Proportional to 905,965.75, 1,250,200.88 and 498,064.62

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Solution

The fourth proportional to 905,965.75, 1,250,200.88 and 498,064.62 is: 687,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,965.75 : 1,250,200.88 = 498,064.62 : x
  2. Step 2: Convert to fraction form
    905,965.75/1,250,200.88 = 498,064.62/x
  3. Step 3: Cross multiply
    905,965.75x = 1,250,200.88 × 498,064.62
  4. Step 4: Simplify right side
    905,965.75x = 622,680,826,220.87
  5. Step 5: Solve for x
    x = 622,680,826,220.87/905,965.75
  6. Step 6: Final answer
    x = 687,311.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.