Home / 1,093,629.60-1,640,444.40-428,781.60

Finding the Fourth Proportional to 1,093,629.60, 1,640,444.40 and 428,781.60

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Solution

The fourth proportional to 1,093,629.60, 1,640,444.40 and 428,781.60 is: 643,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,629.60 : 1,640,444.40 = 428,781.60 : x
  2. Step 2: Convert to fraction form
    1,093,629.60/1,640,444.40 = 428,781.60/x
  3. Step 3: Cross multiply
    1,093,629.60x = 1,640,444.40 × 428,781.60
  4. Step 4: Simplify right side
    1,093,629.60x = 703,392,374,543.04
  5. Step 5: Solve for x
    x = 703,392,374,543.04/1,093,629.60
  6. Step 6: Final answer
    x = 643,172.40

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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.