Home / 1,342,257.71-2,013,390.71-331,379.78

Finding the Fourth Proportional to 1,342,257.71, 2,013,390.71 and 331,379.78

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Solution

The fourth proportional to 1,342,257.71, 2,013,390.71 and 331,379.78 is: 497,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,257.71 : 2,013,390.71 = 331,379.78 : x
  2. Step 2: Convert to fraction form
    1,342,257.71/2,013,390.71 = 331,379.78/x
  3. Step 3: Cross multiply
    1,342,257.71x = 2,013,390.71 × 331,379.78
  4. Step 4: Simplify right side
    1,342,257.71x = 667,196,958,809.99
  5. Step 5: Solve for x
    x = 667,196,958,809.99/1,342,257.71
  6. Step 6: Final answer
    x = 497,070.69

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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.