Home / 911,937.38-1,367,934-312,890.26

Finding the Fourth Proportional to 911,937.38, 1,367,934 and 312,890.26

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Solution

The fourth proportional to 911,937.38, 1,367,934 and 312,890.26 is: 469,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,937.38 : 1,367,934 = 312,890.26 : x
  2. Step 2: Convert to fraction form
    911,937.38/1,367,934 = 312,890.26/x
  3. Step 3: Cross multiply
    911,937.38x = 1,367,934 × 312,890.26
  4. Step 4: Simplify right side
    911,937.38x = 428,013,224,922.84
  5. Step 5: Solve for x
    x = 428,013,224,922.84/911,937.38
  6. Step 6: Final answer
    x = 469,344.97

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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.