Home / 485,329.83-669,757.41-281,501.43

Finding the Fourth Proportional to 485,329.83, 669,757.41 and 281,501.43

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Solution

The fourth proportional to 485,329.83, 669,757.41 and 281,501.43 is: 388,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,329.83 : 669,757.41 = 281,501.43 : x
  2. Step 2: Convert to fraction form
    485,329.83/669,757.41 = 281,501.43/x
  3. Step 3: Cross multiply
    485,329.83x = 669,757.41 × 281,501.43
  4. Step 4: Simplify right side
    485,329.83x = 188,537,667,248.48
  5. Step 5: Solve for x
    x = 188,537,667,248.48/485,329.83
  6. Step 6: Final answer
    x = 388,473.27

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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.