Home / 792,478.36-1,189,013.46-319,297.96

Finding the Fourth Proportional to 792,478.36, 1,189,013.46 and 319,297.96

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Solution

The fourth proportional to 792,478.36, 1,189,013.46 and 319,297.96 is: 479,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,478.36 : 1,189,013.46 = 319,297.96 : x
  2. Step 2: Convert to fraction form
    792,478.36/1,189,013.46 = 319,297.96/x
  3. Step 3: Cross multiply
    792,478.36x = 1,189,013.46 × 319,297.96
  4. Step 4: Simplify right side
    792,478.36x = 379,649,572,190.54
  5. Step 5: Solve for x
    x = 379,649,572,190.54/792,478.36
  6. Step 6: Final answer
    x = 479,066.17

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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.