Home / 792,481.32-1,092,802.19-678,138.48

Finding the Fourth Proportional to 792,481.32, 1,092,802.19 and 678,138.48

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Solution

The fourth proportional to 792,481.32, 1,092,802.19 and 678,138.48 is: 935,127.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,481.32 : 1,092,802.19 = 678,138.48 : x
  2. Step 2: Convert to fraction form
    792,481.32/1,092,802.19 = 678,138.48/x
  3. Step 3: Cross multiply
    792,481.32x = 1,092,802.19 × 678,138.48
  4. Step 4: Simplify right side
    792,481.32x = 741,071,212,676.58
  5. Step 5: Solve for x
    x = 741,071,212,676.58/792,481.32
  6. Step 6: Final answer
    x = 935,127.67

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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.