Home / 1,728,885.60-2,589,711.52-1,390,091.68

Finding the Fourth Proportional to 1,728,885.60, 2,589,711.52 and 1,390,091.68

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Solution

The fourth proportional to 1,728,885.60, 2,589,711.52 and 1,390,091.68 is: 2,082,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,885.60 : 2,589,711.52 = 1,390,091.68 : x
  2. Step 2: Convert to fraction form
    1,728,885.60/2,589,711.52 = 1,390,091.68/x
  3. Step 3: Cross multiply
    1,728,885.60x = 2,589,711.52 × 1,390,091.68
  4. Step 4: Simplify right side
    1,728,885.60x = 3,599,936,437,552.15
  5. Step 5: Solve for x
    x = 3,599,936,437,552.15/1,728,885.60
  6. Step 6: Final answer
    x = 2,082,229.41

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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.