Home / 719,295.54-1,078,943.01-213,854.33

Finding the Fourth Proportional to 719,295.54, 1,078,943.01 and 213,854.33

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Solution

The fourth proportional to 719,295.54, 1,078,943.01 and 213,854.33 is: 320,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,295.54 : 1,078,943.01 = 213,854.33 : x
  2. Step 2: Convert to fraction form
    719,295.54/1,078,943.01 = 213,854.33/x
  3. Step 3: Cross multiply
    719,295.54x = 1,078,943.01 × 213,854.33
  4. Step 4: Simplify right side
    719,295.54x = 230,736,634,511.73
  5. Step 5: Solve for x
    x = 230,736,634,511.73/719,295.54
  6. Step 6: Final answer
    x = 320,781.41

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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.