Home / 1,938,721.37-2,673,693.77-1,213,635.15

Finding the Fourth Proportional to 1,938,721.37, 2,673,693.77 and 1,213,635.15

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Solution

The fourth proportional to 1,938,721.37, 2,673,693.77 and 1,213,635.15 is: 1,673,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,721.37 : 2,673,693.77 = 1,213,635.15 : x
  2. Step 2: Convert to fraction form
    1,938,721.37/2,673,693.77 = 1,213,635.15/x
  3. Step 3: Cross multiply
    1,938,721.37x = 2,673,693.77 × 1,213,635.15
  4. Step 4: Simplify right side
    1,938,721.37x = 3,244,888,733,539.84
  5. Step 5: Solve for x
    x = 3,244,888,733,539.84/1,938,721.37
  6. Step 6: Final answer
    x = 1,673,726.20

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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.