Home / 911,735.95-1,366,516.92-424,764.86

Finding the Fourth Proportional to 911,735.95, 1,366,516.92 and 424,764.86

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Solution

The fourth proportional to 911,735.95, 1,366,516.92 and 424,764.86 is: 636,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,735.95 : 1,366,516.92 = 424,764.86 : x
  2. Step 2: Convert to fraction form
    911,735.95/1,366,516.92 = 424,764.86/x
  3. Step 3: Cross multiply
    911,735.95x = 1,366,516.92 × 424,764.86
  4. Step 4: Simplify right side
    911,735.95x = 580,448,368,211.43
  5. Step 5: Solve for x
    x = 580,448,368,211.43/911,735.95
  6. Step 6: Final answer
    x = 636,640.87

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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.