Home / 3,105,312.72-4,285,285.34-1,728,653.94

Finding the Fourth Proportional to 3,105,312.72, 4,285,285.34 and 1,728,653.94

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Solution

The fourth proportional to 3,105,312.72, 4,285,285.34 and 1,728,653.94 is: 2,385,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,312.72 : 4,285,285.34 = 1,728,653.94 : x
  2. Step 2: Convert to fraction form
    3,105,312.72/4,285,285.34 = 1,728,653.94/x
  3. Step 3: Cross multiply
    3,105,312.72x = 4,285,285.34 × 1,728,653.94
  4. Step 4: Simplify right side
    3,105,312.72x = 7,407,775,387,015.24
  5. Step 5: Solve for x
    x = 7,407,775,387,015.24/3,105,312.72
  6. Step 6: Final answer
    x = 2,385,516.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.