Home / 809,989.80-1,214,207.10-629,975.40

Finding the Fourth Proportional to 809,989.80, 1,214,207.10 and 629,975.40

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Solution

The fourth proportional to 809,989.80, 1,214,207.10 and 629,975.40 is: 944,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,989.80 : 1,214,207.10 = 629,975.40 : x
  2. Step 2: Convert to fraction form
    809,989.80/1,214,207.10 = 629,975.40/x
  3. Step 3: Cross multiply
    809,989.80x = 1,214,207.10 × 629,975.40
  4. Step 4: Simplify right side
    809,989.80x = 764,920,603,505.34
  5. Step 5: Solve for x
    x = 764,920,603,505.34/809,989.80
  6. Step 6: Final answer
    x = 944,358.32

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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.