Home / 481,945.60-722,918.40-403,796.80

Finding the Fourth Proportional to 481,945.60, 722,918.40 and 403,796.80

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Solution

The fourth proportional to 481,945.60, 722,918.40 and 403,796.80 is: 605,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,945.60 : 722,918.40 = 403,796.80 : x
  2. Step 2: Convert to fraction form
    481,945.60/722,918.40 = 403,796.80/x
  3. Step 3: Cross multiply
    481,945.60x = 722,918.40 × 403,796.80
  4. Step 4: Simplify right side
    481,945.60x = 291,912,136,581.12
  5. Step 5: Solve for x
    x = 291,912,136,581.12/481,945.60
  6. Step 6: Final answer
    x = 605,695.20

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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.