Home / 829,971.62-1,245,001.60-261,397.18

Finding the Fourth Proportional to 829,971.62, 1,245,001.60 and 261,397.18

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Solution

The fourth proportional to 829,971.62, 1,245,001.60 and 261,397.18 is: 392,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,971.62 : 1,245,001.60 = 261,397.18 : x
  2. Step 2: Convert to fraction form
    829,971.62/1,245,001.60 = 261,397.18/x
  3. Step 3: Cross multiply
    829,971.62x = 1,245,001.60 × 261,397.18
  4. Step 4: Simplify right side
    829,971.62x = 325,439,907,335.49
  5. Step 5: Solve for x
    x = 325,439,907,335.49/829,971.62
  6. Step 6: Final answer
    x = 392,109.68

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1.5x scale

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.