Home / 812,050.64-1,120,512.56-449,473.64

Finding the Fourth Proportional to 812,050.64, 1,120,512.56 and 449,473.64

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Solution

The fourth proportional to 812,050.64, 1,120,512.56 and 449,473.64 is: 620,208.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,050.64 : 1,120,512.56 = 449,473.64 : x
  2. Step 2: Convert to fraction form
    812,050.64/1,120,512.56 = 449,473.64/x
  3. Step 3: Cross multiply
    812,050.64x = 1,120,512.56 × 449,473.64
  4. Step 4: Simplify right side
    812,050.64x = 503,640,859,008.92
  5. Step 5: Solve for x
    x = 503,640,859,008.92/812,050.64
  6. Step 6: Final answer
    x = 620,208.68

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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.