Home / 490,934.36-736,394.14-220,871.78

Finding the Fourth Proportional to 490,934.36, 736,394.14 and 220,871.78

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Solution

The fourth proportional to 490,934.36, 736,394.14 and 220,871.78 is: 331,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,934.36 : 736,394.14 = 220,871.78 : x
  2. Step 2: Convert to fraction form
    490,934.36/736,394.14 = 220,871.78/x
  3. Step 3: Cross multiply
    490,934.36x = 736,394.14 × 220,871.78
  4. Step 4: Simplify right side
    490,934.36x = 162,648,684,483.37
  5. Step 5: Solve for x
    x = 162,648,684,483.37/490,934.36
  6. Step 6: Final answer
    x = 331,304.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.