Home / 2,877,231-3,970,578.78-1,605,423

Finding the Fourth Proportional to 2,877,231, 3,970,578.78 and 1,605,423

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Solution

The fourth proportional to 2,877,231, 3,970,578.78 and 1,605,423 is: 2,215,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877,231 : 3,970,578.78 = 1,605,423 : x
  2. Step 2: Convert to fraction form
    2,877,231/3,970,578.78 = 1,605,423/x
  3. Step 3: Cross multiply
    2,877,231x = 3,970,578.78 × 1,605,423
  4. Step 4: Simplify right side
    2,877,231x = 6,374,458,496,723.94
  5. Step 5: Solve for x
    x = 6,374,458,496,723.94/2,877,231
  6. Step 6: Final answer
    x = 2,215,483.74

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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.