Home / 887,142.82-1,224,255.90-505,169.62

Finding the Fourth Proportional to 887,142.82, 1,224,255.90 and 505,169.62

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Solution

The fourth proportional to 887,142.82, 1,224,255.90 and 505,169.62 is: 697,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,142.82 : 1,224,255.90 = 505,169.62 : x
  2. Step 2: Convert to fraction form
    887,142.82/1,224,255.90 = 505,169.62/x
  3. Step 3: Cross multiply
    887,142.82x = 1,224,255.90 × 505,169.62
  4. Step 4: Simplify right side
    887,142.82x = 618,456,887,785.76
  5. Step 5: Solve for x
    x = 618,456,887,785.76/887,142.82
  6. Step 6: Final answer
    x = 697,133.40

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Double scale
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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.