Home / 1,815,531.20-2,723,296.80-485,835.20

Finding the Fourth Proportional to 1,815,531.20, 2,723,296.80 and 485,835.20

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Solution

The fourth proportional to 1,815,531.20, 2,723,296.80 and 485,835.20 is: 728,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,531.20 : 2,723,296.80 = 485,835.20 : x
  2. Step 2: Convert to fraction form
    1,815,531.20/2,723,296.80 = 485,835.20/x
  3. Step 3: Cross multiply
    1,815,531.20x = 2,723,296.80 × 485,835.20
  4. Step 4: Simplify right side
    1,815,531.20x = 1,323,073,445,487.36
  5. Step 5: Solve for x
    x = 1,323,073,445,487.36/1,815,531.20
  6. Step 6: Final answer
    x = 728,752.80

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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.