Home / 887,138.82-1,224,250.38-505,165.62

Finding the Fourth Proportional to 887,138.82, 1,224,250.38 and 505,165.62

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Solution

The fourth proportional to 887,138.82, 1,224,250.38 and 505,165.62 is: 697,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,138.82 : 1,224,250.38 = 505,165.62 : x
  2. Step 2: Convert to fraction form
    887,138.82/1,224,250.38 = 505,165.62/x
  3. Step 3: Cross multiply
    887,138.82x = 1,224,250.38 × 505,165.62
  4. Step 4: Simplify right side
    887,138.82x = 618,449,202,247.94
  5. Step 5: Solve for x
    x = 618,449,202,247.94/887,138.82
  6. Step 6: Final answer
    x = 697,127.88

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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.