Home / 857,530.60-1,285,374.30-324,845.80

Finding the Fourth Proportional to 857,530.60, 1,285,374.30 and 324,845.80

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Solution

The fourth proportional to 857,530.60, 1,285,374.30 and 324,845.80 is: 486,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,530.60 : 1,285,374.30 = 324,845.80 : x
  2. Step 2: Convert to fraction form
    857,530.60/1,285,374.30 = 324,845.80/x
  3. Step 3: Cross multiply
    857,530.60x = 1,285,374.30 × 324,845.80
  4. Step 4: Simplify right side
    857,530.60x = 417,548,442,782.94
  5. Step 5: Solve for x
    x = 417,548,442,782.94/857,530.60
  6. Step 6: Final answer
    x = 486,919.58

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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.