Home / 1,204,783.12-1,662,653.28-721,255.12

Finding the Fourth Proportional to 1,204,783.12, 1,662,653.28 and 721,255.12

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Solution

The fourth proportional to 1,204,783.12, 1,662,653.28 and 721,255.12 is: 995,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,783.12 : 1,662,653.28 = 721,255.12 : x
  2. Step 2: Convert to fraction form
    1,204,783.12/1,662,653.28 = 721,255.12/x
  3. Step 3: Cross multiply
    1,204,783.12x = 1,662,653.28 × 721,255.12
  4. Step 4: Simplify right side
    1,204,783.12x = 1,199,197,190,984.79
  5. Step 5: Solve for x
    x = 1,199,197,190,984.79/1,204,783.12
  6. Step 6: Final answer
    x = 995,363.54

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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.