Home / 821,380.59-1,134,614.66-618,961.59

Finding the Fourth Proportional to 821,380.59, 1,134,614.66 and 618,961.59

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Solution

The fourth proportional to 821,380.59, 1,134,614.66 and 618,961.59 is: 855,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,380.59 : 1,134,614.66 = 618,961.59 : x
  2. Step 2: Convert to fraction form
    821,380.59/1,134,614.66 = 618,961.59/x
  3. Step 3: Cross multiply
    821,380.59x = 1,134,614.66 × 618,961.59
  4. Step 4: Simplify right side
    821,380.59x = 702,282,890,896.10
  5. Step 5: Solve for x
    x = 702,282,890,896.10/821,380.59
  6. Step 6: Final answer
    x = 855,003.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.