Home / 3,172,145.60-4,377,564.32-1,721,840.80

Finding the Fourth Proportional to 3,172,145.60, 4,377,564.32 and 1,721,840.80

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Solution

The fourth proportional to 3,172,145.60, 4,377,564.32 and 1,721,840.80 is: 2,376,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,145.60 : 4,377,564.32 = 1,721,840.80 : x
  2. Step 2: Convert to fraction form
    3,172,145.60/4,377,564.32 = 1,721,840.80/x
  3. Step 3: Cross multiply
    3,172,145.60x = 4,377,564.32 × 1,721,840.80
  4. Step 4: Simplify right side
    3,172,145.60x = 7,537,468,850,800.26
  5. Step 5: Solve for x
    x = 7,537,468,850,800.26/3,172,145.60
  6. Step 6: Final answer
    x = 2,376,142.15

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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.