Home / 930,987.40-1,396,481.10-612,122.80

Finding the Fourth Proportional to 930,987.40, 1,396,481.10 and 612,122.80

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Solution

The fourth proportional to 930,987.40, 1,396,481.10 and 612,122.80 is: 918,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,987.40 : 1,396,481.10 = 612,122.80 : x
  2. Step 2: Convert to fraction form
    930,987.40/1,396,481.10 = 612,122.80/x
  3. Step 3: Cross multiply
    930,987.40x = 1,396,481.10 × 612,122.80
  4. Step 4: Simplify right side
    930,987.40x = 854,817,921,079.08
  5. Step 5: Solve for x
    x = 854,817,921,079.08/930,987.40
  6. Step 6: Final answer
    x = 918,184.20

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Similar ratio
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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.