Home / 831,722.40-1,147,775.54-449,748.27

Finding the Fourth Proportional to 831,722.40, 1,147,775.54 and 449,748.27

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Solution

The fourth proportional to 831,722.40, 1,147,775.54 and 449,748.27 is: 620,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,722.40 : 1,147,775.54 = 449,748.27 : x
  2. Step 2: Convert to fraction form
    831,722.40/1,147,775.54 = 449,748.27/x
  3. Step 3: Cross multiply
    831,722.40x = 1,147,775.54 × 449,748.27
  4. Step 4: Simplify right side
    831,722.40x = 516,210,061,214.57
  5. Step 5: Solve for x
    x = 516,210,061,214.57/831,722.40
  6. Step 6: Final answer
    x = 620,651.87

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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.