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Finding the Fourth Proportional to 3,437,804.31, 4,743,892.22 and 1,987,593.21

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Solution

The fourth proportional to 3,437,804.31, 4,743,892.22 and 1,987,593.21 is: 2,742,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437,804.31 : 4,743,892.22 = 1,987,593.21 : x
  2. Step 2: Convert to fraction form
    3,437,804.31/4,743,892.22 = 1,987,593.21/x
  3. Step 3: Cross multiply
    3,437,804.31x = 4,743,892.22 × 1,987,593.21
  4. Step 4: Simplify right side
    3,437,804.31x = 9,428,927,955,505.86
  5. Step 5: Solve for x
    x = 9,428,927,955,505.86/3,437,804.31
  6. Step 6: Final answer
    x = 2,742,718.06

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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.