Home / 746,806.40-1,120,209.60-426,629.60

Finding the Fourth Proportional to 746,806.40, 1,120,209.60 and 426,629.60

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Solution

The fourth proportional to 746,806.40, 1,120,209.60 and 426,629.60 is: 639,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,806.40 : 1,120,209.60 = 426,629.60 : x
  2. Step 2: Convert to fraction form
    746,806.40/1,120,209.60 = 426,629.60/x
  3. Step 3: Cross multiply
    746,806.40x = 1,120,209.60 × 426,629.60
  4. Step 4: Simplify right side
    746,806.40x = 477,914,573,564.16
  5. Step 5: Solve for x
    x = 477,914,573,564.16/746,806.40
  6. Step 6: Final answer
    x = 639,944.40

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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.