Home / 831,182.74-1,147,037.43-449,208.61

Finding the Fourth Proportional to 831,182.74, 1,147,037.43 and 449,208.61

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Solution

The fourth proportional to 831,182.74, 1,147,037.43 and 449,208.61 is: 619,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,182.74 : 1,147,037.43 = 449,208.61 : x
  2. Step 2: Convert to fraction form
    831,182.74/1,147,037.43 = 449,208.61/x
  3. Step 3: Cross multiply
    831,182.74x = 1,147,037.43 × 449,208.61
  4. Step 4: Simplify right side
    831,182.74x = 515,259,089,548.27
  5. Step 5: Solve for x
    x = 515,259,089,548.27/831,182.74
  6. Step 6: Final answer
    x = 619,910.72

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1.5x scale

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.