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Finding the Fourth Proportional to 565,860.52, 780,894.03 and 311,215.96

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Solution

The fourth proportional to 565,860.52, 780,894.03 and 311,215.96 is: 429,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,860.52 : 780,894.03 = 311,215.96 : x
  2. Step 2: Convert to fraction form
    565,860.52/780,894.03 = 311,215.96/x
  3. Step 3: Cross multiply
    565,860.52x = 780,894.03 × 311,215.96
  4. Step 4: Simplify right side
    565,860.52x = 243,026,685,204.72
  5. Step 5: Solve for x
    x = 243,026,685,204.72/565,860.52
  6. Step 6: Final answer
    x = 429,481.61

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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.