Home / 831,360.74-1,147,277.30-449,387.52

Finding the Fourth Proportional to 831,360.74, 1,147,277.30 and 449,387.52

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Solution

The fourth proportional to 831,360.74, 1,147,277.30 and 449,387.52 is: 620,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,360.74 : 1,147,277.30 = 449,387.52 : x
  2. Step 2: Convert to fraction form
    831,360.74/1,147,277.30 = 449,387.52/x
  3. Step 3: Cross multiply
    831,360.74x = 1,147,277.30 × 449,387.52
  4. Step 4: Simplify right side
    831,360.74x = 515,572,100,599.30
  5. Step 5: Solve for x
    x = 515,572,100,599.30/831,360.74
  6. Step 6: Final answer
    x = 620,154.50

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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.