Home / 831,884.53-1,148,000.70-449,911.21

Finding the Fourth Proportional to 831,884.53, 1,148,000.70 and 449,911.21

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Solution

The fourth proportional to 831,884.53, 1,148,000.70 and 449,911.21 is: 620,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,884.53 : 1,148,000.70 = 449,911.21 : x
  2. Step 2: Convert to fraction form
    831,884.53/1,148,000.70 = 449,911.21/x
  3. Step 3: Cross multiply
    831,884.53x = 1,148,000.70 × 449,911.21
  4. Step 4: Simplify right side
    831,884.53x = 516,498,384,017.85
  5. Step 5: Solve for x
    x = 516,498,384,017.85/831,884.53
  6. Step 6: Final answer
    x = 620,877.50

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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.