Home / 1,388,687.10-2,083,145.85-442,031.10

Finding the Fourth Proportional to 1,388,687.10, 2,083,145.85 and 442,031.10

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Solution

The fourth proportional to 1,388,687.10, 2,083,145.85 and 442,031.10 is: 663,083.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,687.10 : 2,083,145.85 = 442,031.10 : x
  2. Step 2: Convert to fraction form
    1,388,687.10/2,083,145.85 = 442,031.10/x
  3. Step 3: Cross multiply
    1,388,687.10x = 2,083,145.85 × 442,031.10
  4. Step 4: Simplify right side
    1,388,687.10x = 920,815,251,535.94
  5. Step 5: Solve for x
    x = 920,815,251,535.94/1,388,687.10
  6. Step 6: Final answer
    x = 663,083.32

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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.