Home / 1,520,121.18-2,097,560.52-908,144.46

Finding the Fourth Proportional to 1,520,121.18, 2,097,560.52 and 908,144.46

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Solution

The fourth proportional to 1,520,121.18, 2,097,560.52 and 908,144.46 is: 1,253,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,121.18 : 2,097,560.52 = 908,144.46 : x
  2. Step 2: Convert to fraction form
    1,520,121.18/2,097,560.52 = 908,144.46/x
  3. Step 3: Cross multiply
    1,520,121.18x = 2,097,560.52 × 908,144.46
  4. Step 4: Simplify right side
    1,520,121.18x = 1,904,887,965,752.72
  5. Step 5: Solve for x
    x = 1,904,887,965,752.72/1,520,121.18
  6. Step 6: Final answer
    x = 1,253,115.86

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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.