Home / 1,340,907.66-2,011,638.60-442,404.36

Finding the Fourth Proportional to 1,340,907.66, 2,011,638.60 and 442,404.36

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Solution

The fourth proportional to 1,340,907.66, 2,011,638.60 and 442,404.36 is: 663,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,907.66 : 2,011,638.60 = 442,404.36 : x
  2. Step 2: Convert to fraction form
    1,340,907.66/2,011,638.60 = 442,404.36/x
  3. Step 3: Cross multiply
    1,340,907.66x = 2,011,638.60 × 442,404.36
  4. Step 4: Simplify right side
    1,340,907.66x = 889,957,687,384.30
  5. Step 5: Solve for x
    x = 889,957,687,384.30/1,340,907.66
  6. Step 6: Final answer
    x = 663,697.97

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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.