Home / 825,642.28-1,138,902.46-519,232.64

Finding the Fourth Proportional to 825,642.28, 1,138,902.46 and 519,232.64

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Solution

The fourth proportional to 825,642.28, 1,138,902.46 and 519,232.64 is: 716,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,642.28 : 1,138,902.46 = 519,232.64 : x
  2. Step 2: Convert to fraction form
    825,642.28/1,138,902.46 = 519,232.64/x
  3. Step 3: Cross multiply
    825,642.28x = 1,138,902.46 × 519,232.64
  4. Step 4: Simplify right side
    825,642.28x = 591,355,331,008.29
  5. Step 5: Solve for x
    x = 591,355,331,008.29/825,642.28
  6. Step 6: Final answer
    x = 716,236.74

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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.