Home / 3,280,711.68-4,922,640-1,784,801.28

Finding the Fourth Proportional to 3,280,711.68, 4,922,640 and 1,784,801.28

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Solution

The fourth proportional to 3,280,711.68, 4,922,640 and 1,784,801.28 is: 2,678,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,711.68 : 4,922,640 = 1,784,801.28 : x
  2. Step 2: Convert to fraction form
    3,280,711.68/4,922,640 = 1,784,801.28/x
  3. Step 3: Cross multiply
    3,280,711.68x = 4,922,640 × 1,784,801.28
  4. Step 4: Simplify right side
    3,280,711.68x = 8,785,934,172,979.20
  5. Step 5: Solve for x
    x = 8,785,934,172,979.20/3,280,711.68
  6. Step 6: Final answer
    x = 2,678,057.39

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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.