Home / 678,298.73-936,054.79-372,406.46

Finding the Fourth Proportional to 678,298.73, 936,054.79 and 372,406.46

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Solution

The fourth proportional to 678,298.73, 936,054.79 and 372,406.46 is: 513,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,298.73 : 936,054.79 = 372,406.46 : x
  2. Step 2: Convert to fraction form
    678,298.73/936,054.79 = 372,406.46/x
  3. Step 3: Cross multiply
    678,298.73x = 936,054.79 × 372,406.46
  4. Step 4: Simplify right side
    678,298.73x = 348,592,852,982.44
  5. Step 5: Solve for x
    x = 348,592,852,982.44/678,298.73
  6. Step 6: Final answer
    x = 513,922.31

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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.