Home / 780,146.80-1,170,220.20-736,601.20

Finding the Fourth Proportional to 780,146.80, 1,170,220.20 and 736,601.20

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Solution

The fourth proportional to 780,146.80, 1,170,220.20 and 736,601.20 is: 1,104,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,146.80 : 1,170,220.20 = 736,601.20 : x
  2. Step 2: Convert to fraction form
    780,146.80/1,170,220.20 = 736,601.20/x
  3. Step 3: Cross multiply
    780,146.80x = 1,170,220.20 × 736,601.20
  4. Step 4: Simplify right side
    780,146.80x = 861,985,603,584.24
  5. Step 5: Solve for x
    x = 861,985,603,584.24/780,146.80
  6. Step 6: Final answer
    x = 1,104,901.80

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Double scale
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Similar ratio
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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.