Home / 825,555.74-1,138,783.38-519,147.32

Finding the Fourth Proportional to 825,555.74, 1,138,783.38 and 519,147.32

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Solution

The fourth proportional to 825,555.74, 1,138,783.38 and 519,147.32 is: 716,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,555.74 : 1,138,783.38 = 519,147.32 : x
  2. Step 2: Convert to fraction form
    825,555.74/1,138,783.38 = 519,147.32/x
  3. Step 3: Cross multiply
    825,555.74x = 1,138,783.38 × 519,147.32
  4. Step 4: Simplify right side
    825,555.74x = 591,196,339,787.54
  5. Step 5: Solve for x
    x = 591,196,339,787.54/825,555.74
  6. Step 6: Final answer
    x = 716,119.23

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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.