Home / 1,207,930.50-1,811,896.14-355,002.12

Finding the Fourth Proportional to 1,207,930.50, 1,811,896.14 and 355,002.12

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Solution

The fourth proportional to 1,207,930.50, 1,811,896.14 and 355,002.12 is: 532,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,930.50 : 1,811,896.14 = 355,002.12 : x
  2. Step 2: Convert to fraction form
    1,207,930.50/1,811,896.14 = 355,002.12/x
  3. Step 3: Cross multiply
    1,207,930.50x = 1,811,896.14 × 355,002.12
  4. Step 4: Simplify right side
    1,207,930.50x = 643,226,970,919.82
  5. Step 5: Solve for x
    x = 643,226,970,919.82/1,207,930.50
  6. Step 6: Final answer
    x = 532,503.29

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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.