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Finding the Fourth Proportional to 587,261.80, 881,123.10 and 213,322.60

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Solution

The fourth proportional to 587,261.80, 881,123.10 and 213,322.60 is: 320,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,261.80 : 881,123.10 = 213,322.60 : x
  2. Step 2: Convert to fraction form
    587,261.80/881,123.10 = 213,322.60/x
  3. Step 3: Cross multiply
    587,261.80x = 881,123.10 × 213,322.60
  4. Step 4: Simplify right side
    587,261.80x = 187,963,470,612.06
  5. Step 5: Solve for x
    x = 187,963,470,612.06/587,261.80
  6. Step 6: Final answer
    x = 320,067.59

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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.