Home / 804,844.40-1,207,266.60-405,330.80

Finding the Fourth Proportional to 804,844.40, 1,207,266.60 and 405,330.80

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Solution

The fourth proportional to 804,844.40, 1,207,266.60 and 405,330.80 is: 607,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,844.40 : 1,207,266.60 = 405,330.80 : x
  2. Step 2: Convert to fraction form
    804,844.40/1,207,266.60 = 405,330.80/x
  3. Step 3: Cross multiply
    804,844.40x = 1,207,266.60 × 405,330.80
  4. Step 4: Simplify right side
    804,844.40x = 489,342,336,791.28
  5. Step 5: Solve for x
    x = 489,342,336,791.28/804,844.40
  6. Step 6: Final answer
    x = 607,996.20

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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.