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Finding the Fourth Proportional to 587,752.80, 881,974.80 and 213,727.20

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Solution

The fourth proportional to 587,752.80, 881,974.80 and 213,727.20 is: 320,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,752.80 : 881,974.80 = 213,727.20 : x
  2. Step 2: Convert to fraction form
    587,752.80/881,974.80 = 213,727.20/x
  3. Step 3: Cross multiply
    587,752.80x = 881,974.80 × 213,727.20
  4. Step 4: Simplify right side
    587,752.80x = 188,502,004,474.56
  5. Step 5: Solve for x
    x = 188,502,004,474.56/587,752.80
  6. Step 6: Final answer
    x = 320,716.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.