Home / 781,204.96-1,078,071.36-458,928.64

Finding the Fourth Proportional to 781,204.96, 1,078,071.36 and 458,928.64

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Solution

The fourth proportional to 781,204.96, 1,078,071.36 and 458,928.64 is: 633,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,204.96 : 1,078,071.36 = 458,928.64 : x
  2. Step 2: Convert to fraction form
    781,204.96/1,078,071.36 = 458,928.64/x
  3. Step 3: Cross multiply
    781,204.96x = 1,078,071.36 × 458,928.64
  4. Step 4: Simplify right side
    781,204.96x = 494,757,823,067.75
  5. Step 5: Solve for x
    x = 494,757,823,067.75/781,204.96
  6. Step 6: Final answer
    x = 633,326.53

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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.