Home / 403,742.20-605,613.30-325,010.20

Finding the Fourth Proportional to 403,742.20, 605,613.30 and 325,010.20

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Solution

The fourth proportional to 403,742.20, 605,613.30 and 325,010.20 is: 487,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,742.20 : 605,613.30 = 325,010.20 : x
  2. Step 2: Convert to fraction form
    403,742.20/605,613.30 = 325,010.20/x
  3. Step 3: Cross multiply
    403,742.20x = 605,613.30 × 325,010.20
  4. Step 4: Simplify right side
    403,742.20x = 196,830,499,755.66
  5. Step 5: Solve for x
    x = 196,830,499,755.66/403,742.20
  6. Step 6: Final answer
    x = 487,515.30

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1.5x scale

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.