Home / 422,704.20-583,890.72-315,087.24

Finding the Fourth Proportional to 422,704.20, 583,890.72 and 315,087.24

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Solution

The fourth proportional to 422,704.20, 583,890.72 and 315,087.24 is: 435,237.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,704.20 : 583,890.72 = 315,087.24 : x
  2. Step 2: Convert to fraction form
    422,704.20/583,890.72 = 315,087.24/x
  3. Step 3: Cross multiply
    422,704.20x = 583,890.72 × 315,087.24
  4. Step 4: Simplify right side
    422,704.20x = 183,976,515,426.41
  5. Step 5: Solve for x
    x = 183,976,515,426.41/422,704.20
  6. Step 6: Final answer
    x = 435,237.02

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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.