Home / 859,871.30-1,289,990.41-291,232.46

Finding the Fourth Proportional to 859,871.30, 1,289,990.41 and 291,232.46

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Solution

The fourth proportional to 859,871.30, 1,289,990.41 and 291,232.46 is: 436,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,871.30 : 1,289,990.41 = 291,232.46 : x
  2. Step 2: Convert to fraction form
    859,871.30/1,289,990.41 = 291,232.46/x
  3. Step 3: Cross multiply
    859,871.30x = 1,289,990.41 × 291,232.46
  4. Step 4: Simplify right side
    859,871.30x = 375,687,082,977.60
  5. Step 5: Solve for x
    x = 375,687,082,977.60/859,871.30
  6. Step 6: Final answer
    x = 436,910.83

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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.