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Finding the Fourth Proportional to 565,272.02, 780,118.89 and 323,630.66

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Solution

The fourth proportional to 565,272.02, 780,118.89 and 323,630.66 is: 446,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,272.02 : 780,118.89 = 323,630.66 : x
  2. Step 2: Convert to fraction form
    565,272.02/780,118.89 = 323,630.66/x
  3. Step 3: Cross multiply
    565,272.02x = 780,118.89 × 323,630.66
  4. Step 4: Simplify right side
    565,272.02x = 252,470,391,249.17
  5. Step 5: Solve for x
    x = 252,470,391,249.17/565,272.02
  6. Step 6: Final answer
    x = 446,635.22

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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.