Home / 681,655.47-1,022,446.01-208,340.67

Finding the Fourth Proportional to 681,655.47, 1,022,446.01 and 208,340.67

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Solution

The fourth proportional to 681,655.47, 1,022,446.01 and 208,340.67 is: 312,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,655.47 : 1,022,446.01 = 208,340.67 : x
  2. Step 2: Convert to fraction form
    681,655.47/1,022,446.01 = 208,340.67/x
  3. Step 3: Cross multiply
    681,655.47x = 1,022,446.01 × 208,340.67
  4. Step 4: Simplify right side
    681,655.47x = 213,017,085,720.52
  5. Step 5: Solve for x
    x = 213,017,085,720.52/681,655.47
  6. Step 6: Final answer
    x = 312,499.64

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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.