Home / 758,641.09-1,137,194.85-326,640.33

Finding the Fourth Proportional to 758,641.09, 1,137,194.85 and 326,640.33

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Solution

The fourth proportional to 758,641.09, 1,137,194.85 and 326,640.33 is: 489,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,641.09 : 1,137,194.85 = 326,640.33 : x
  2. Step 2: Convert to fraction form
    758,641.09/1,137,194.85 = 326,640.33/x
  3. Step 3: Cross multiply
    758,641.09x = 1,137,194.85 × 326,640.33
  4. Step 4: Simplify right side
    758,641.09x = 371,453,701,078.30
  5. Step 5: Solve for x
    x = 371,453,701,078.30/758,641.09
  6. Step 6: Final answer
    x = 489,630.35

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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.