Home / 806,322.82-1,210,231.56-407,243.85

Finding the Fourth Proportional to 806,322.82, 1,210,231.56 and 407,243.85

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Solution

The fourth proportional to 806,322.82, 1,210,231.56 and 407,243.85 is: 611,243.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,322.82 : 1,210,231.56 = 407,243.85 : x
  2. Step 2: Convert to fraction form
    806,322.82/1,210,231.56 = 407,243.85/x
  3. Step 3: Cross multiply
    806,322.82x = 1,210,231.56 × 407,243.85
  4. Step 4: Simplify right side
    806,322.82x = 492,859,356,874.70
  5. Step 5: Solve for x
    x = 492,859,356,874.70/806,322.82
  6. Step 6: Final answer
    x = 611,243.22

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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.