Home / 486,919.71-671,983.97-269,123.72

Finding the Fourth Proportional to 486,919.71, 671,983.97 and 269,123.72

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Solution

The fourth proportional to 486,919.71, 671,983.97 and 269,123.72 is: 371,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,919.71 : 671,983.97 = 269,123.72 : x
  2. Step 2: Convert to fraction form
    486,919.71/671,983.97 = 269,123.72/x
  3. Step 3: Cross multiply
    486,919.71x = 671,983.97 × 269,123.72
  4. Step 4: Simplify right side
    486,919.71x = 180,846,821,081.23
  5. Step 5: Solve for x
    x = 180,846,821,081.23/486,919.71
  6. Step 6: Final answer
    x = 371,409.94

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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.