Home / 777,120.30-1,165,718.85-403,872.30

Finding the Fourth Proportional to 777,120.30, 1,165,718.85 and 403,872.30

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Solution

The fourth proportional to 777,120.30, 1,165,718.85 and 403,872.30 is: 605,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,120.30 : 1,165,718.85 = 403,872.30 : x
  2. Step 2: Convert to fraction form
    777,120.30/1,165,718.85 = 403,872.30/x
  3. Step 3: Cross multiply
    777,120.30x = 1,165,718.85 × 403,872.30
  4. Step 4: Simplify right side
    777,120.30x = 470,801,553,102.86
  5. Step 5: Solve for x
    x = 470,801,553,102.86/777,120.30
  6. Step 6: Final answer
    x = 605,828.41

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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.