Home / 1,231,877-1,699,822.32-687,943.28

Finding the Fourth Proportional to 1,231,877, 1,699,822.32 and 687,943.28

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Solution

The fourth proportional to 1,231,877, 1,699,822.32 and 687,943.28 is: 949,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,877 : 1,699,822.32 = 687,943.28 : x
  2. Step 2: Convert to fraction form
    1,231,877/1,699,822.32 = 687,943.28/x
  3. Step 3: Cross multiply
    1,231,877x = 1,699,822.32 × 687,943.28
  4. Step 4: Simplify right side
    1,231,877x = 1,169,381,342,238.01
  5. Step 5: Solve for x
    x = 1,169,381,342,238.01/1,231,877
  6. Step 6: Final answer
    x = 949,267.94

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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.