Home / 828,809.60-1,243,214.40-822,904.70

Finding the Fourth Proportional to 828,809.60, 1,243,214.40 and 822,904.70

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Solution

The fourth proportional to 828,809.60, 1,243,214.40 and 822,904.70 is: 1,234,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,809.60 : 1,243,214.40 = 822,904.70 : x
  2. Step 2: Convert to fraction form
    828,809.60/1,243,214.40 = 822,904.70/x
  3. Step 3: Cross multiply
    828,809.60x = 1,243,214.40 × 822,904.70
  4. Step 4: Simplify right side
    828,809.60x = 1,023,046,972,867.68
  5. Step 5: Solve for x
    x = 1,023,046,972,867.68/828,809.60
  6. Step 6: Final answer
    x = 1,234,357.05

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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.