Home / 485,004.42-669,306.22-281,173.48

Finding the Fourth Proportional to 485,004.42, 669,306.22 and 281,173.48

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Solution

The fourth proportional to 485,004.42, 669,306.22 and 281,173.48 is: 388,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,004.42 : 669,306.22 = 281,173.48 : x
  2. Step 2: Convert to fraction form
    485,004.42/669,306.22 = 281,173.48/x
  3. Step 3: Cross multiply
    485,004.42x = 669,306.22 × 281,173.48
  4. Step 4: Simplify right side
    485,004.42x = 188,191,159,063.05
  5. Step 5: Solve for x
    x = 188,191,159,063.05/485,004.42
  6. Step 6: Final answer
    x = 388,019.47

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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.