Home / 678,299.73-936,056.17-372,407.46

Finding the Fourth Proportional to 678,299.73, 936,056.17 and 372,407.46

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Solution

The fourth proportional to 678,299.73, 936,056.17 and 372,407.46 is: 513,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,299.73 : 936,056.17 = 372,407.46 : x
  2. Step 2: Convert to fraction form
    678,299.73/936,056.17 = 372,407.46/x
  3. Step 3: Cross multiply
    678,299.73x = 936,056.17 × 372,407.46
  4. Step 4: Simplify right side
    678,299.73x = 348,594,300,687.03
  5. Step 5: Solve for x
    x = 348,594,300,687.03/678,299.73
  6. Step 6: Final answer
    x = 513,923.69

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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.