Home / 851,480.36-1,175,213.04-489,152.96

Finding the Fourth Proportional to 851,480.36, 1,175,213.04 and 489,152.96

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Solution

The fourth proportional to 851,480.36, 1,175,213.04 and 489,152.96 is: 675,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,480.36 : 1,175,213.04 = 489,152.96 : x
  2. Step 2: Convert to fraction form
    851,480.36/1,175,213.04 = 489,152.96/x
  3. Step 3: Cross multiply
    851,480.36x = 1,175,213.04 × 489,152.96
  4. Step 4: Simplify right side
    851,480.36x = 574,858,937,146.60
  5. Step 5: Solve for x
    x = 574,858,937,146.60/851,480.36
  6. Step 6: Final answer
    x = 675,128.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.