Home / 828,172.80-1,242,259.20-800,616.60

Finding the Fourth Proportional to 828,172.80, 1,242,259.20 and 800,616.60

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Solution

The fourth proportional to 828,172.80, 1,242,259.20 and 800,616.60 is: 1,200,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,172.80 : 1,242,259.20 = 800,616.60 : x
  2. Step 2: Convert to fraction form
    828,172.80/1,242,259.20 = 800,616.60/x
  3. Step 3: Cross multiply
    828,172.80x = 1,242,259.20 × 800,616.60
  4. Step 4: Simplify right side
    828,172.80x = 994,573,337,022.72
  5. Step 5: Solve for x
    x = 994,573,337,022.72/828,172.80
  6. Step 6: Final answer
    x = 1,200,924.90

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1.5x scale

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.