Home / 1,585,638.05-2,188,181.90-860,485.75

Finding the Fourth Proportional to 1,585,638.05, 2,188,181.90 and 860,485.75

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Solution

The fourth proportional to 1,585,638.05, 2,188,181.90 and 860,485.75 is: 1,187,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,638.05 : 2,188,181.90 = 860,485.75 : x
  2. Step 2: Convert to fraction form
    1,585,638.05/2,188,181.90 = 860,485.75/x
  3. Step 3: Cross multiply
    1,585,638.05x = 2,188,181.90 × 860,485.75
  4. Step 4: Simplify right side
    1,585,638.05x = 1,882,899,343,357.92
  5. Step 5: Solve for x
    x = 1,882,899,343,357.92/1,585,638.05
  6. Step 6: Final answer
    x = 1,187,471.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.