Home / 765,810.93-1,057,145.82-545,190.42

Finding the Fourth Proportional to 765,810.93, 1,057,145.82 and 545,190.42

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Solution

The fourth proportional to 765,810.93, 1,057,145.82 and 545,190.42 is: 752,595.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,810.93 : 1,057,145.82 = 545,190.42 : x
  2. Step 2: Convert to fraction form
    765,810.93/1,057,145.82 = 545,190.42/x
  3. Step 3: Cross multiply
    765,810.93x = 1,057,145.82 × 545,190.42
  4. Step 4: Simplify right side
    765,810.93x = 576,345,773,607.04
  5. Step 5: Solve for x
    x = 576,345,773,607.04/765,810.93
  6. Step 6: Final answer
    x = 752,595.39

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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.