Home / 645,945.20-967,168.20-505,977.20

Finding the Fourth Proportional to 645,945.20, 967,168.20 and 505,977.20

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Solution

The fourth proportional to 645,945.20, 967,168.20 and 505,977.20 is: 757,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,945.20 : 967,168.20 = 505,977.20 : x
  2. Step 2: Convert to fraction form
    645,945.20/967,168.20 = 505,977.20/x
  3. Step 3: Cross multiply
    645,945.20x = 967,168.20 × 505,977.20
  4. Step 4: Simplify right side
    645,945.20x = 489,365,057,765.04
  5. Step 5: Solve for x
    x = 489,365,057,765.04/645,945.20
  6. Step 6: Final answer
    x = 757,595.32

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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.