Home / 821,298.02-1,231,849.98-252,678.02

Finding the Fourth Proportional to 821,298.02, 1,231,849.98 and 252,678.02

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Solution

The fourth proportional to 821,298.02, 1,231,849.98 and 252,678.02 is: 378,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,298.02 : 1,231,849.98 = 252,678.02 : x
  2. Step 2: Convert to fraction form
    821,298.02/1,231,849.98 = 252,678.02/x
  3. Step 3: Cross multiply
    821,298.02x = 1,231,849.98 × 252,678.02
  4. Step 4: Simplify right side
    821,298.02x = 311,261,407,724.19
  5. Step 5: Solve for x
    x = 311,261,407,724.19/821,298.02
  6. Step 6: Final answer
    x = 378,987.17

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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.