Home / 986,622.40-1,479,933.60-785,855.80

Finding the Fourth Proportional to 986,622.40, 1,479,933.60 and 785,855.80

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Solution

The fourth proportional to 986,622.40, 1,479,933.60 and 785,855.80 is: 1,178,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,622.40 : 1,479,933.60 = 785,855.80 : x
  2. Step 2: Convert to fraction form
    986,622.40/1,479,933.60 = 785,855.80/x
  3. Step 3: Cross multiply
    986,622.40x = 1,479,933.60 × 785,855.80
  4. Step 4: Simplify right side
    986,622.40x = 1,163,014,403,174.88
  5. Step 5: Solve for x
    x = 1,163,014,403,174.88/986,622.40
  6. Step 6: Final answer
    x = 1,178,783.70

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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.