Home / 1,289,438.20-1,933,476.90-436,216.60

Finding the Fourth Proportional to 1,289,438.20, 1,933,476.90 and 436,216.60

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Solution

The fourth proportional to 1,289,438.20, 1,933,476.90 and 436,216.60 is: 654,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,438.20 : 1,933,476.90 = 436,216.60 : x
  2. Step 2: Convert to fraction form
    1,289,438.20/1,933,476.90 = 436,216.60/x
  3. Step 3: Cross multiply
    1,289,438.20x = 1,933,476.90 × 436,216.60
  4. Step 4: Simplify right side
    1,289,438.20x = 843,414,719,496.54
  5. Step 5: Solve for x
    x = 843,414,719,496.54/1,289,438.20
  6. Step 6: Final answer
    x = 654,094.72

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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.