Home / 722,081.80-1,083,122.70-709,640.20

Finding the Fourth Proportional to 722,081.80, 1,083,122.70 and 709,640.20

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Solution

The fourth proportional to 722,081.80, 1,083,122.70 and 709,640.20 is: 1,064,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,081.80 : 1,083,122.70 = 709,640.20 : x
  2. Step 2: Convert to fraction form
    722,081.80/1,083,122.70 = 709,640.20/x
  3. Step 3: Cross multiply
    722,081.80x = 1,083,122.70 × 709,640.20
  4. Step 4: Simplify right side
    722,081.80x = 768,627,409,452.54
  5. Step 5: Solve for x
    x = 768,627,409,452.54/722,081.80
  6. Step 6: Final answer
    x = 1,064,460.30

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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.