Home / 769,720.80-1,154,581.20-732,979.20

Finding the Fourth Proportional to 769,720.80, 1,154,581.20 and 732,979.20

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Solution

The fourth proportional to 769,720.80, 1,154,581.20 and 732,979.20 is: 1,099,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,720.80 : 1,154,581.20 = 732,979.20 : x
  2. Step 2: Convert to fraction form
    769,720.80/1,154,581.20 = 732,979.20/x
  3. Step 3: Cross multiply
    769,720.80x = 1,154,581.20 × 732,979.20
  4. Step 4: Simplify right side
    769,720.80x = 846,284,004,311.04
  5. Step 5: Solve for x
    x = 846,284,004,311.04/769,720.80
  6. Step 6: Final answer
    x = 1,099,468.80

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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.