Home / 3,172,685.92-4,378,318.32-1,722,384.16

Finding the Fourth Proportional to 3,172,685.92, 4,378,318.32 and 1,722,384.16

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Solution

The fourth proportional to 3,172,685.92, 4,378,318.32 and 1,722,384.16 is: 2,376,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,685.92 : 4,378,318.32 = 1,722,384.16 : x
  2. Step 2: Convert to fraction form
    3,172,685.92/4,378,318.32 = 1,722,384.16/x
  3. Step 3: Cross multiply
    3,172,685.92x = 4,378,318.32 × 1,722,384.16
  4. Step 4: Simplify right side
    3,172,685.92x = 7,541,146,121,805.81
  5. Step 5: Solve for x
    x = 7,541,146,121,805.81/3,172,685.92
  6. Step 6: Final answer
    x = 2,376,896.52

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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.