Home / 678,961.07-936,963.21-373,056.42

Finding the Fourth Proportional to 678,961.07, 936,963.21 and 373,056.42

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Solution

The fourth proportional to 678,961.07, 936,963.21 and 373,056.42 is: 514,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,961.07 : 936,963.21 = 373,056.42 : x
  2. Step 2: Convert to fraction form
    678,961.07/936,963.21 = 373,056.42/x
  3. Step 3: Cross multiply
    678,961.07x = 936,963.21 × 373,056.42
  4. Step 4: Simplify right side
    678,961.07x = 349,540,140,794.31
  5. Step 5: Solve for x
    x = 349,540,140,794.31/678,961.07
  6. Step 6: Final answer
    x = 514,816.17

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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.