Home / 681,690.16-1,022,537.76-208,373.68

Finding the Fourth Proportional to 681,690.16, 1,022,537.76 and 208,373.68

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Solution

The fourth proportional to 681,690.16, 1,022,537.76 and 208,373.68 is: 312,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,690.16 : 1,022,537.76 = 208,373.68 : x
  2. Step 2: Convert to fraction form
    681,690.16/1,022,537.76 = 208,373.68/x
  3. Step 3: Cross multiply
    681,690.16x = 1,022,537.76 × 208,373.68
  4. Step 4: Simplify right side
    681,690.16x = 213,069,955,990.16
  5. Step 5: Solve for x
    x = 213,069,955,990.16/681,690.16
  6. Step 6: Final answer
    x = 312,561.29

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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.