Home / 725,986.85-1,001,820.65-403,690.03

Finding the Fourth Proportional to 725,986.85, 1,001,820.65 and 403,690.03

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Solution

The fourth proportional to 725,986.85, 1,001,820.65 and 403,690.03 is: 557,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,986.85 : 1,001,820.65 = 403,690.03 : x
  2. Step 2: Convert to fraction form
    725,986.85/1,001,820.65 = 403,690.03/x
  3. Step 3: Cross multiply
    725,986.85x = 1,001,820.65 × 403,690.03
  4. Step 4: Simplify right side
    725,986.85x = 404,425,003,730.12
  5. Step 5: Solve for x
    x = 404,425,003,730.12/725,986.85
  6. Step 6: Final answer
    x = 557,069.33

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1.5x scale

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.