Home / 826,622.80-1,239,934.20-818,749.60

Finding the Fourth Proportional to 826,622.80, 1,239,934.20 and 818,749.60

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Solution

The fourth proportional to 826,622.80, 1,239,934.20 and 818,749.60 is: 1,228,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,622.80 : 1,239,934.20 = 818,749.60 : x
  2. Step 2: Convert to fraction form
    826,622.80/1,239,934.20 = 818,749.60/x
  3. Step 3: Cross multiply
    826,622.80x = 1,239,934.20 × 818,749.60
  4. Step 4: Simplify right side
    826,622.80x = 1,015,195,630,276.32
  5. Step 5: Solve for x
    x = 1,015,195,630,276.32/826,622.80
  6. Step 6: Final answer
    x = 1,228,124.40

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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.