Home / 1,448,542.32-1,999,355.85-989,842.56

Finding the Fourth Proportional to 1,448,542.32, 1,999,355.85 and 989,842.56

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Solution

The fourth proportional to 1,448,542.32, 1,999,355.85 and 989,842.56 is: 1,366,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,542.32 : 1,999,355.85 = 989,842.56 : x
  2. Step 2: Convert to fraction form
    1,448,542.32/1,999,355.85 = 989,842.56/x
  3. Step 3: Cross multiply
    1,448,542.32x = 1,999,355.85 × 989,842.56
  4. Step 4: Simplify right side
    1,448,542.32x = 1,979,047,512,914.98
  5. Step 5: Solve for x
    x = 1,979,047,512,914.98/1,448,542.32
  6. Step 6: Final answer
    x = 1,366,233.82

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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.