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Finding the Fourth Proportional to 572,304.36, 859,299.18 and 320,079

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Solution

The fourth proportional to 572,304.36, 859,299.18 and 320,079 is: 480,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,304.36 : 859,299.18 = 320,079 : x
  2. Step 2: Convert to fraction form
    572,304.36/859,299.18 = 320,079/x
  3. Step 3: Cross multiply
    572,304.36x = 859,299.18 × 320,079
  4. Step 4: Simplify right side
    572,304.36x = 275,043,622,235.22
  5. Step 5: Solve for x
    x = 275,043,622,235.22/572,304.36
  6. Step 6: Final answer
    x = 480,589.77

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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.