Home / 828,277.20-1,242,415.80-823,028.40

Finding the Fourth Proportional to 828,277.20, 1,242,415.80 and 823,028.40

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Solution

The fourth proportional to 828,277.20, 1,242,415.80 and 823,028.40 is: 1,234,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,277.20 : 1,242,415.80 = 823,028.40 : x
  2. Step 2: Convert to fraction form
    828,277.20/1,242,415.80 = 823,028.40/x
  3. Step 3: Cross multiply
    828,277.20x = 1,242,415.80 × 823,028.40
  4. Step 4: Simplify right side
    828,277.20x = 1,022,543,488,008.72
  5. Step 5: Solve for x
    x = 1,022,543,488,008.72/828,277.20
  6. Step 6: Final answer
    x = 1,234,542.60

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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.