Home / 681,381.12-1,022,071.68-208,041.12

Finding the Fourth Proportional to 681,381.12, 1,022,071.68 and 208,041.12

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Solution

The fourth proportional to 681,381.12, 1,022,071.68 and 208,041.12 is: 312,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,381.12 : 1,022,071.68 = 208,041.12 : x
  2. Step 2: Convert to fraction form
    681,381.12/1,022,071.68 = 208,041.12/x
  3. Step 3: Cross multiply
    681,381.12x = 1,022,071.68 × 208,041.12
  4. Step 4: Simplify right side
    681,381.12x = 212,632,937,027.48
  5. Step 5: Solve for x
    x = 212,632,937,027.48/681,381.12
  6. Step 6: Final answer
    x = 312,061.68

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Similar ratio
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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.