Home / 404,512.90-606,939.45-217,305.70

Finding the Fourth Proportional to 404,512.90, 606,939.45 and 217,305.70

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Solution

The fourth proportional to 404,512.90, 606,939.45 and 217,305.70 is: 326,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,512.90 : 606,939.45 = 217,305.70 : x
  2. Step 2: Convert to fraction form
    404,512.90/606,939.45 = 217,305.70/x
  3. Step 3: Cross multiply
    404,512.90x = 606,939.45 × 217,305.70
  4. Step 4: Simplify right side
    404,512.90x = 131,891,402,039.87
  5. Step 5: Solve for x
    x = 131,891,402,039.87/404,512.90
  6. Step 6: Final answer
    x = 326,049.93

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1.5x scale

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.