Home / 757,825.80-1,134,114.30-521,629.80

Finding the Fourth Proportional to 757,825.80, 1,134,114.30 and 521,629.80

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Solution

The fourth proportional to 757,825.80, 1,134,114.30 and 521,629.80 is: 780,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,825.80 : 1,134,114.30 = 521,629.80 : x
  2. Step 2: Convert to fraction form
    757,825.80/1,134,114.30 = 521,629.80/x
  3. Step 3: Cross multiply
    757,825.80x = 1,134,114.30 × 521,629.80
  4. Step 4: Simplify right side
    757,825.80x = 591,587,815,486.14
  5. Step 5: Solve for x
    x = 591,587,815,486.14/757,825.80
  6. Step 6: Final answer
    x = 780,638.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.