Home / 1,625,434-2,437,956.88-427,449.64

Finding the Fourth Proportional to 1,625,434, 2,437,956.88 and 427,449.64

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Solution

The fourth proportional to 1,625,434, 2,437,956.88 and 427,449.64 is: 641,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625,434 : 2,437,956.88 = 427,449.64 : x
  2. Step 2: Convert to fraction form
    1,625,434/2,437,956.88 = 427,449.64/x
  3. Step 3: Cross multiply
    1,625,434x = 2,437,956.88 × 427,449.64
  4. Step 4: Simplify right side
    1,625,434x = 1,042,103,790,691.52
  5. Step 5: Solve for x
    x = 1,042,103,790,691.52/1,625,434
  6. Step 6: Final answer
    x = 641,123.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.