Home / 765,813.94-1,057,149.96-545,193.42

Finding the Fourth Proportional to 765,813.94, 1,057,149.96 and 545,193.42

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Solution

The fourth proportional to 765,813.94, 1,057,149.96 and 545,193.42 is: 752,599.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,813.94 : 1,057,149.96 = 545,193.42 : x
  2. Step 2: Convert to fraction form
    765,813.94/1,057,149.96 = 545,193.42/x
  3. Step 3: Cross multiply
    765,813.94x = 1,057,149.96 × 545,193.42
  4. Step 4: Simplify right side
    765,813.94x = 576,351,202,145.26
  5. Step 5: Solve for x
    x = 576,351,202,145.26/765,813.94
  6. Step 6: Final answer
    x = 752,599.52

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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.