Home / 876,891.12-1,315,396.11-308,203.08

Finding the Fourth Proportional to 876,891.12, 1,315,396.11 and 308,203.08

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Solution

The fourth proportional to 876,891.12, 1,315,396.11 and 308,203.08 is: 462,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,891.12 : 1,315,396.11 = 308,203.08 : x
  2. Step 2: Convert to fraction form
    876,891.12/1,315,396.11 = 308,203.08/x
  3. Step 3: Cross multiply
    876,891.12x = 1,315,396.11 × 308,203.08
  4. Step 4: Simplify right side
    876,891.12x = 405,409,132,522.02
  5. Step 5: Solve for x
    x = 405,409,132,522.02/876,891.12
  6. Step 6: Final answer
    x = 462,325.51

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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.