Home / 805,301.28-1,208,083.04-265,396.64

Finding the Fourth Proportional to 805,301.28, 1,208,083.04 and 265,396.64

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Solution

The fourth proportional to 805,301.28, 1,208,083.04 and 265,396.64 is: 398,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,301.28 : 1,208,083.04 = 265,396.64 : x
  2. Step 2: Convert to fraction form
    805,301.28/1,208,083.04 = 265,396.64/x
  3. Step 3: Cross multiply
    805,301.28x = 1,208,083.04 × 265,396.64
  4. Step 4: Simplify right side
    805,301.28x = 320,621,179,656.99
  5. Step 5: Solve for x
    x = 320,621,179,656.99/805,301.28
  6. Step 6: Final answer
    x = 398,138.17

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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.