Home / 827,999.20-1,241,998.80-822,750.40

Finding the Fourth Proportional to 827,999.20, 1,241,998.80 and 822,750.40

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Solution

The fourth proportional to 827,999.20, 1,241,998.80 and 822,750.40 is: 1,234,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,999.20 : 1,241,998.80 = 822,750.40 : x
  2. Step 2: Convert to fraction form
    827,999.20/1,241,998.80 = 822,750.40/x
  3. Step 3: Cross multiply
    827,999.20x = 1,241,998.80 × 822,750.40
  4. Step 4: Simplify right side
    827,999.20x = 1,021,855,009,499.52
  5. Step 5: Solve for x
    x = 1,021,855,009,499.52/827,999.20
  6. Step 6: Final answer
    x = 1,234,125.60

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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.