Home / 398,931.08-550,887.08-296,919.27

Finding the Fourth Proportional to 398,931.08, 550,887.08 and 296,919.27

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Solution

The fourth proportional to 398,931.08, 550,887.08 and 296,919.27 is: 410,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,931.08 : 550,887.08 = 296,919.27 : x
  2. Step 2: Convert to fraction form
    398,931.08/550,887.08 = 296,919.27/x
  3. Step 3: Cross multiply
    398,931.08x = 550,887.08 × 296,919.27
  4. Step 4: Simplify right side
    398,931.08x = 163,568,988,161.44
  5. Step 5: Solve for x
    x = 163,568,988,161.44/398,931.08
  6. Step 6: Final answer
    x = 410,018.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.