Home / 760,716.82-1,140,812.45-220,826.72

Finding the Fourth Proportional to 760,716.82, 1,140,812.45 and 220,826.72

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Solution

The fourth proportional to 760,716.82, 1,140,812.45 and 220,826.72 is: 331,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,716.82 : 1,140,812.45 = 220,826.72 : x
  2. Step 2: Convert to fraction form
    760,716.82/1,140,812.45 = 220,826.72/x
  3. Step 3: Cross multiply
    760,716.82x = 1,140,812.45 × 220,826.72
  4. Step 4: Simplify right side
    760,716.82x = 251,921,875,286.81
  5. Step 5: Solve for x
    x = 251,921,875,286.81/760,716.82
  6. Step 6: Final answer
    x = 331,163.81

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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.