Home / 1,329,427.20-1,993,722.52-430,660.42

Finding the Fourth Proportional to 1,329,427.20, 1,993,722.52 and 430,660.42

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Solution

The fourth proportional to 1,329,427.20, 1,993,722.52 and 430,660.42 is: 645,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,427.20 : 1,993,722.52 = 430,660.42 : x
  2. Step 2: Convert to fraction form
    1,329,427.20/1,993,722.52 = 430,660.42/x
  3. Step 3: Cross multiply
    1,329,427.20x = 1,993,722.52 × 430,660.42
  4. Step 4: Simplify right side
    1,329,427.20x = 858,617,377,826.66
  5. Step 5: Solve for x
    x = 858,617,377,826.66/1,329,427.20
  6. Step 6: Final answer
    x = 645,855.13

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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.