Home / 457,834.20-686,168.10-333,029.40

Finding the Fourth Proportional to 457,834.20, 686,168.10 and 333,029.40

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Solution

The fourth proportional to 457,834.20, 686,168.10 and 333,029.40 is: 499,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,834.20 : 686,168.10 = 333,029.40 : x
  2. Step 2: Convert to fraction form
    457,834.20/686,168.10 = 333,029.40/x
  3. Step 3: Cross multiply
    457,834.20x = 686,168.10 × 333,029.40
  4. Step 4: Simplify right side
    457,834.20x = 228,514,150,642.14
  5. Step 5: Solve for x
    x = 228,514,150,642.14/457,834.20
  6. Step 6: Final answer
    x = 499,119.88

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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.