Home / 465,812.42-642,776.45-261,816.35

Finding the Fourth Proportional to 465,812.42, 642,776.45 and 261,816.35

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Solution

The fourth proportional to 465,812.42, 642,776.45 and 261,816.35 is: 361,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,812.42 : 642,776.45 = 261,816.35 : x
  2. Step 2: Convert to fraction form
    465,812.42/642,776.45 = 261,816.35/x
  3. Step 3: Cross multiply
    465,812.42x = 642,776.45 × 261,816.35
  4. Step 4: Simplify right side
    465,812.42x = 168,289,379,481.99
  5. Step 5: Solve for x
    x = 168,289,379,481.99/465,812.42
  6. Step 6: Final answer
    x = 361,281.44

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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.