Home / 944,009.45-1,415,489.24-312,578.81

Finding the Fourth Proportional to 944,009.45, 1,415,489.24 and 312,578.81

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Solution

The fourth proportional to 944,009.45, 1,415,489.24 and 312,578.81 is: 468,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,009.45 : 1,415,489.24 = 312,578.81 : x
  2. Step 2: Convert to fraction form
    944,009.45/1,415,489.24 = 312,578.81/x
  3. Step 3: Cross multiply
    944,009.45x = 1,415,489.24 × 312,578.81
  4. Step 4: Simplify right side
    944,009.45x = 442,451,940,644.11
  5. Step 5: Solve for x
    x = 442,451,940,644.11/944,009.45
  6. Step 6: Final answer
    x = 468,694.40

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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.