Home / 812,009.52-1,120,575.32-449,458.32

Finding the Fourth Proportional to 812,009.52, 1,120,575.32 and 449,458.32

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Solution

The fourth proportional to 812,009.52, 1,120,575.32 and 449,458.32 is: 620,253.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,009.52 : 1,120,575.32 = 449,458.32 : x
  2. Step 2: Convert to fraction form
    812,009.52/1,120,575.32 = 449,458.32/x
  3. Step 3: Cross multiply
    812,009.52x = 1,120,575.32 × 449,458.32
  4. Step 4: Simplify right side
    812,009.52x = 503,651,900,760.66
  5. Step 5: Solve for x
    x = 503,651,900,760.66/812,009.52
  6. Step 6: Final answer
    x = 620,253.69

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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.