Home / 481,868.50-664,988.16-280,677.46

Finding the Fourth Proportional to 481,868.50, 664,988.16 and 280,677.46

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Solution

The fourth proportional to 481,868.50, 664,988.16 and 280,677.46 is: 387,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,868.50 : 664,988.16 = 280,677.46 : x
  2. Step 2: Convert to fraction form
    481,868.50/664,988.16 = 280,677.46/x
  3. Step 3: Cross multiply
    481,868.50x = 664,988.16 × 280,677.46
  4. Step 4: Simplify right side
    481,868.50x = 186,647,187,678.87
  5. Step 5: Solve for x
    x = 186,647,187,678.87/481,868.50
  6. Step 6: Final answer
    x = 387,340.50

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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.