Home / 827,097.60-1,240,646.40-821,192.70

Finding the Fourth Proportional to 827,097.60, 1,240,646.40 and 821,192.70

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Solution

The fourth proportional to 827,097.60, 1,240,646.40 and 821,192.70 is: 1,231,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,097.60 : 1,240,646.40 = 821,192.70 : x
  2. Step 2: Convert to fraction form
    827,097.60/1,240,646.40 = 821,192.70/x
  3. Step 3: Cross multiply
    827,097.60x = 1,240,646.40 × 821,192.70
  4. Step 4: Simplify right side
    827,097.60x = 1,018,809,766,961.28
  5. Step 5: Solve for x
    x = 1,018,809,766,961.28/827,097.60
  6. Step 6: Final answer
    x = 1,231,789.05

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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.