Home / 3,129,813.20-4,696,463.68-1,690,467.44

Finding the Fourth Proportional to 3,129,813.20, 4,696,463.68 and 1,690,467.44

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Solution

The fourth proportional to 3,129,813.20, 4,696,463.68 and 1,690,467.44 is: 2,536,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,813.20 : 4,696,463.68 = 1,690,467.44 : x
  2. Step 2: Convert to fraction form
    3,129,813.20/4,696,463.68 = 1,690,467.44/x
  3. Step 3: Cross multiply
    3,129,813.20x = 4,696,463.68 × 1,690,467.44
  4. Step 4: Simplify right side
    3,129,813.20x = 7,939,218,934,182.58
  5. Step 5: Solve for x
    x = 7,939,218,934,182.58/3,129,813.20
  6. Step 6: Final answer
    x = 2,536,643.06

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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.