Home / 920,979.88-1,378,919.22-470,731.24

Finding the Fourth Proportional to 920,979.88, 1,378,919.22 and 470,731.24

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Solution

The fourth proportional to 920,979.88, 1,378,919.22 and 470,731.24 is: 704,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,979.88 : 1,378,919.22 = 470,731.24 : x
  2. Step 2: Convert to fraction form
    920,979.88/1,378,919.22 = 470,731.24/x
  3. Step 3: Cross multiply
    920,979.88x = 1,378,919.22 × 470,731.24
  4. Step 4: Simplify right side
    920,979.88x = 649,100,354,290.43
  5. Step 5: Solve for x
    x = 649,100,354,290.43/920,979.88
  6. Step 6: Final answer
    x = 704,793.20

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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.