Home / 804,914.30-1,207,371.45-213,938.30

Finding the Fourth Proportional to 804,914.30, 1,207,371.45 and 213,938.30

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Solution

The fourth proportional to 804,914.30, 1,207,371.45 and 213,938.30 is: 320,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,914.30 : 1,207,371.45 = 213,938.30 : x
  2. Step 2: Convert to fraction form
    804,914.30/1,207,371.45 = 213,938.30/x
  3. Step 3: Cross multiply
    804,914.30x = 1,207,371.45 × 213,938.30
  4. Step 4: Simplify right side
    804,914.30x = 258,302,995,481.54
  5. Step 5: Solve for x
    x = 258,302,995,481.54/804,914.30
  6. Step 6: Final answer
    x = 320,907.45

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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.