Home / 814,977.20-1,222,465.80-515,795.60

Finding the Fourth Proportional to 814,977.20, 1,222,465.80 and 515,795.60

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Solution

The fourth proportional to 814,977.20, 1,222,465.80 and 515,795.60 is: 773,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,977.20 : 1,222,465.80 = 515,795.60 : x
  2. Step 2: Convert to fraction form
    814,977.20/1,222,465.80 = 515,795.60/x
  3. Step 3: Cross multiply
    814,977.20x = 1,222,465.80 × 515,795.60
  4. Step 4: Simplify right side
    814,977.20x = 630,542,480,790.48
  5. Step 5: Solve for x
    x = 630,542,480,790.48/814,977.20
  6. Step 6: Final answer
    x = 773,693.40

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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.