Home / 2,877,786.78-3,971,417.96-1,637,328.73

Finding the Fourth Proportional to 2,877,786.78, 3,971,417.96 and 1,637,328.73

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Solution

The fourth proportional to 2,877,786.78, 3,971,417.96 and 1,637,328.73 is: 2,259,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877,786.78 : 3,971,417.96 = 1,637,328.73 : x
  2. Step 2: Convert to fraction form
    2,877,786.78/3,971,417.96 = 1,637,328.73/x
  3. Step 3: Cross multiply
    2,877,786.78x = 3,971,417.96 × 1,637,328.73
  4. Step 4: Simplify right side
    2,877,786.78x = 6,502,516,724,745.99
  5. Step 5: Solve for x
    x = 6,502,516,724,745.99/2,877,786.78
  6. Step 6: Final answer
    x = 2,259,554.73

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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.