Home / 457,845.20-686,767.80-450,069.20

Finding the Fourth Proportional to 457,845.20, 686,767.80 and 450,069.20

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Solution

The fourth proportional to 457,845.20, 686,767.80 and 450,069.20 is: 675,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,845.20 : 686,767.80 = 450,069.20 : x
  2. Step 2: Convert to fraction form
    457,845.20/686,767.80 = 450,069.20/x
  3. Step 3: Cross multiply
    457,845.20x = 686,767.80 × 450,069.20
  4. Step 4: Simplify right side
    457,845.20x = 309,093,034,331.76
  5. Step 5: Solve for x
    x = 309,093,034,331.76/457,845.20
  6. Step 6: Final answer
    x = 675,103.80

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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.