Home / 814,919.81-1,221,631.34-282,068.19

Finding the Fourth Proportional to 814,919.81, 1,221,631.34 and 282,068.19

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Solution

The fourth proportional to 814,919.81, 1,221,631.34 and 282,068.19 is: 422,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,919.81 : 1,221,631.34 = 282,068.19 : x
  2. Step 2: Convert to fraction form
    814,919.81/1,221,631.34 = 282,068.19/x
  3. Step 3: Cross multiply
    814,919.81x = 1,221,631.34 × 282,068.19
  4. Step 4: Simplify right side
    814,919.81x = 344,583,339,510.73
  5. Step 5: Solve for x
    x = 344,583,339,510.73/814,919.81
  6. Step 6: Final answer
    x = 422,843.25

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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.