Home / 479,334.12-661,720.78-298,104.42

Finding the Fourth Proportional to 479,334.12, 661,720.78 and 298,104.42

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Solution

The fourth proportional to 479,334.12, 661,720.78 and 298,104.42 is: 411,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,334.12 : 661,720.78 = 298,104.42 : x
  2. Step 2: Convert to fraction form
    479,334.12/661,720.78 = 298,104.42/x
  3. Step 3: Cross multiply
    479,334.12x = 661,720.78 × 298,104.42
  4. Step 4: Simplify right side
    479,334.12x = 197,261,889,323.85
  5. Step 5: Solve for x
    x = 197,261,889,323.85/479,334.12
  6. Step 6: Final answer
    x = 411,533.17

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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.