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Finding the Fourth Proportional to 404,806.40, 606,237.60 and 217,404.80

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Solution

The fourth proportional to 404,806.40, 606,237.60 and 217,404.80 is: 325,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,806.40 : 606,237.60 = 217,404.80 : x
  2. Step 2: Convert to fraction form
    404,806.40/606,237.60 = 217,404.80/x
  3. Step 3: Cross multiply
    404,806.40x = 606,237.60 × 217,404.80
  4. Step 4: Simplify right side
    404,806.40x = 131,798,964,180.48
  5. Step 5: Solve for x
    x = 131,798,964,180.48/404,806.40
  6. Step 6: Final answer
    x = 325,585.18

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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.