Home / 1,361,077.72-1,877,238.12-845,137.09

Finding the Fourth Proportional to 1,361,077.72, 1,877,238.12 and 845,137.09

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Solution

The fourth proportional to 1,361,077.72, 1,877,238.12 and 845,137.09 is: 1,165,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,077.72 : 1,877,238.12 = 845,137.09 : x
  2. Step 2: Convert to fraction form
    1,361,077.72/1,877,238.12 = 845,137.09/x
  3. Step 3: Cross multiply
    1,361,077.72x = 1,877,238.12 × 845,137.09
  4. Step 4: Simplify right side
    1,361,077.72x = 1,586,523,561,973.87
  5. Step 5: Solve for x
    x = 1,586,523,561,973.87/1,361,077.72
  6. Step 6: Final answer
    x = 1,165,637.74

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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.