Home / 3,315,114.78-4,972,179.48-918,709.56

Finding the Fourth Proportional to 3,315,114.78, 4,972,179.48 and 918,709.56

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Solution

The fourth proportional to 3,315,114.78, 4,972,179.48 and 918,709.56 is: 1,377,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,114.78 : 4,972,179.48 = 918,709.56 : x
  2. Step 2: Convert to fraction form
    3,315,114.78/4,972,179.48 = 918,709.56/x
  3. Step 3: Cross multiply
    3,315,114.78x = 4,972,179.48 × 918,709.56
  4. Step 4: Simplify right side
    3,315,114.78x = 4,567,988,822,311.83
  5. Step 5: Solve for x
    x = 4,567,988,822,311.83/3,315,114.78
  6. Step 6: Final answer
    x = 1,377,927.80

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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.