Home / 828,268.20-1,240,652.70-688,300.20

Finding the Fourth Proportional to 828,268.20, 1,240,652.70 and 688,300.20

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Solution

The fourth proportional to 828,268.20, 1,240,652.70 and 688,300.20 is: 1,030,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,268.20 : 1,240,652.70 = 688,300.20 : x
  2. Step 2: Convert to fraction form
    828,268.20/1,240,652.70 = 688,300.20/x
  3. Step 3: Cross multiply
    828,268.20x = 1,240,652.70 × 688,300.20
  4. Step 4: Simplify right side
    828,268.20x = 853,941,501,540.54
  5. Step 5: Solve for x
    x = 853,941,501,540.54/828,268.20
  6. Step 6: Final answer
    x = 1,030,996.36

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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.