Home / 505,264.28-697,240.20-287,452.44

Finding the Fourth Proportional to 505,264.28, 697,240.20 and 287,452.44

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Solution

The fourth proportional to 505,264.28, 697,240.20 and 287,452.44 is: 396,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,264.28 : 697,240.20 = 287,452.44 : x
  2. Step 2: Convert to fraction form
    505,264.28/697,240.20 = 287,452.44/x
  3. Step 3: Cross multiply
    505,264.28x = 697,240.20 × 287,452.44
  4. Step 4: Simplify right side
    505,264.28x = 200,423,396,756.09
  5. Step 5: Solve for x
    x = 200,423,396,756.09/505,264.28
  6. Step 6: Final answer
    x = 396,670.43

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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.