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Finding the Fourth Proportional to 579,826.20, 869,739.30 and 579,826.20

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Solution

The fourth proportional to 579,826.20, 869,739.30 and 579,826.20 is: 869,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,826.20 : 869,739.30 = 579,826.20 : x
  2. Step 2: Convert to fraction form
    579,826.20/869,739.30 = 579,826.20/x
  3. Step 3: Cross multiply
    579,826.20x = 869,739.30 × 579,826.20
  4. Step 4: Simplify right side
    579,826.20x = 504,297,633,309.66
  5. Step 5: Solve for x
    x = 504,297,633,309.66/579,826.20
  6. Step 6: Final answer
    x = 869,739.30

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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.