Home / 711,992.56-1,068,163.84-213,356.56

Finding the Fourth Proportional to 711,992.56, 1,068,163.84 and 213,356.56

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Solution

The fourth proportional to 711,992.56, 1,068,163.84 and 213,356.56 is: 320,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,992.56 : 1,068,163.84 = 213,356.56 : x
  2. Step 2: Convert to fraction form
    711,992.56/1,068,163.84 = 213,356.56/x
  3. Step 3: Cross multiply
    711,992.56x = 1,068,163.84 × 213,356.56
  4. Step 4: Simplify right side
    711,992.56x = 227,899,762,418.79
  5. Step 5: Solve for x
    x = 227,899,762,418.79/711,992.56
  6. Step 6: Final answer
    x = 320,087.28

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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.