Home / 1,865,885.20-2,798,840.80-800,028.88

Finding the Fourth Proportional to 1,865,885.20, 2,798,840.80 and 800,028.88

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Solution

The fourth proportional to 1,865,885.20, 2,798,840.80 and 800,028.88 is: 1,200,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,885.20 : 2,798,840.80 = 800,028.88 : x
  2. Step 2: Convert to fraction form
    1,865,885.20/2,798,840.80 = 800,028.88/x
  3. Step 3: Cross multiply
    1,865,885.20x = 2,798,840.80 × 800,028.88
  4. Step 4: Simplify right side
    1,865,885.20x = 2,239,153,470,522.30
  5. Step 5: Solve for x
    x = 2,239,153,470,522.30/1,865,885.20
  6. Step 6: Final answer
    x = 1,200,048.89

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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.