Home / 1,340,815.20-2,010,688.20-442,006.80

Finding the Fourth Proportional to 1,340,815.20, 2,010,688.20 and 442,006.80

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Solution

The fourth proportional to 1,340,815.20, 2,010,688.20 and 442,006.80 is: 662,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,815.20 : 2,010,688.20 = 442,006.80 : x
  2. Step 2: Convert to fraction form
    1,340,815.20/2,010,688.20 = 442,006.80/x
  3. Step 3: Cross multiply
    1,340,815.20x = 2,010,688.20 × 442,006.80
  4. Step 4: Simplify right side
    1,340,815.20x = 888,737,857,079.76
  5. Step 5: Solve for x
    x = 888,737,857,079.76/1,340,815.20
  6. Step 6: Final answer
    x = 662,833.97

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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.