Home / 930,931.80-1,396,397.70-612,067.20

Finding the Fourth Proportional to 930,931.80, 1,396,397.70 and 612,067.20

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Solution

The fourth proportional to 930,931.80, 1,396,397.70 and 612,067.20 is: 918,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,931.80 : 1,396,397.70 = 612,067.20 : x
  2. Step 2: Convert to fraction form
    930,931.80/1,396,397.70 = 612,067.20/x
  3. Step 3: Cross multiply
    930,931.80x = 1,396,397.70 × 612,067.20
  4. Step 4: Simplify right side
    930,931.80x = 854,689,230,325.44
  5. Step 5: Solve for x
    x = 854,689,230,325.44/930,931.80
  6. Step 6: Final answer
    x = 918,100.80

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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.