Home / 565,922.74-780,742.98-320,855.86

Finding the Fourth Proportional to 565,922.74, 780,742.98 and 320,855.86

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Solution

The fourth proportional to 565,922.74, 780,742.98 and 320,855.86 is: 442,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,922.74 : 780,742.98 = 320,855.86 : x
  2. Step 2: Convert to fraction form
    565,922.74/780,742.98 = 320,855.86/x
  3. Step 3: Cross multiply
    565,922.74x = 780,742.98 × 320,855.86
  4. Step 4: Simplify right side
    565,922.74x = 250,505,960,286.86
  5. Step 5: Solve for x
    x = 250,505,960,286.86/565,922.74
  6. Step 6: Final answer
    x = 442,650.46

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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.