Home / 886,979.94-1,330,451.10-287,940.21

Finding the Fourth Proportional to 886,979.94, 1,330,451.10 and 287,940.21

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Solution

The fourth proportional to 886,979.94, 1,330,451.10 and 287,940.21 is: 431,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,979.94 : 1,330,451.10 = 287,940.21 : x
  2. Step 2: Convert to fraction form
    886,979.94/1,330,451.10 = 287,940.21/x
  3. Step 3: Cross multiply
    886,979.94x = 1,330,451.10 × 287,940.21
  4. Step 4: Simplify right side
    886,979.94x = 383,090,369,128.73
  5. Step 5: Solve for x
    x = 383,090,369,128.73/886,979.94
  6. Step 6: Final answer
    x = 431,904.21

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1.5x scale

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.