Home / 719,291.54-1,078,937.01-213,850.33

Finding the Fourth Proportional to 719,291.54, 1,078,937.01 and 213,850.33

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Solution

The fourth proportional to 719,291.54, 1,078,937.01 and 213,850.33 is: 320,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,291.54 : 1,078,937.01 = 213,850.33 : x
  2. Step 2: Convert to fraction form
    719,291.54/1,078,937.01 = 213,850.33/x
  3. Step 3: Cross multiply
    719,291.54x = 1,078,937.01 × 213,850.33
  4. Step 4: Simplify right side
    719,291.54x = 230,731,032,940.37
  5. Step 5: Solve for x
    x = 230,731,032,940.37/719,291.54
  6. Step 6: Final answer
    x = 320,775.40

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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.