Home / 681,775.54-1,022,663.28-208,460.86

Finding the Fourth Proportional to 681,775.54, 1,022,663.28 and 208,460.86

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Solution

The fourth proportional to 681,775.54, 1,022,663.28 and 208,460.86 is: 312,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,775.54 : 1,022,663.28 = 208,460.86 : x
  2. Step 2: Convert to fraction form
    681,775.54/1,022,663.28 = 208,460.86/x
  3. Step 3: Cross multiply
    681,775.54x = 1,022,663.28 × 208,460.86
  4. Step 4: Simplify right side
    681,775.54x = 213,185,266,839.22
  5. Step 5: Solve for x
    x = 213,185,266,839.22/681,775.54
  6. Step 6: Final answer
    x = 312,691.28

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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.