Home / 3,172,145.52-4,377,564.20-1,721,840.76

Finding the Fourth Proportional to 3,172,145.52, 4,377,564.20 and 1,721,840.76

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Solution

The fourth proportional to 3,172,145.52, 4,377,564.20 and 1,721,840.76 is: 2,376,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,145.52 : 4,377,564.20 = 1,721,840.76 : x
  2. Step 2: Convert to fraction form
    3,172,145.52/4,377,564.20 = 1,721,840.76/x
  3. Step 3: Cross multiply
    3,172,145.52x = 4,377,564.20 × 1,721,840.76
  4. Step 4: Simplify right side
    3,172,145.52x = 7,537,468,469,076.79
  5. Step 5: Solve for x
    x = 7,537,468,469,076.79/3,172,145.52
  6. Step 6: Final answer
    x = 2,376,142.08

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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.