Home / 758,640.46-1,137,193.91-326,639.71

Finding the Fourth Proportional to 758,640.46, 1,137,193.91 and 326,639.71

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Solution

The fourth proportional to 758,640.46, 1,137,193.91 and 326,639.71 is: 489,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,640.46 : 1,137,193.91 = 326,639.71 : x
  2. Step 2: Convert to fraction form
    758,640.46/1,137,193.91 = 326,639.71/x
  3. Step 3: Cross multiply
    758,640.46x = 1,137,193.91 × 326,639.71
  4. Step 4: Simplify right side
    758,640.46x = 371,452,685,724.88
  5. Step 5: Solve for x
    x = 371,452,685,724.88/758,640.46
  6. Step 6: Final answer
    x = 489,629.42

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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.