Home / 1,448,549.45-1,999,365.69-989,849.69

Finding the Fourth Proportional to 1,448,549.45, 1,999,365.69 and 989,849.69

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Solution

The fourth proportional to 1,448,549.45, 1,999,365.69 and 989,849.69 is: 1,366,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,549.45 : 1,999,365.69 = 989,849.69 : x
  2. Step 2: Convert to fraction form
    1,448,549.45/1,999,365.69 = 989,849.69/x
  3. Step 3: Cross multiply
    1,448,549.45x = 1,999,365.69 × 989,849.69
  4. Step 4: Simplify right side
    1,448,549.45x = 1,979,071,498,446.31
  5. Step 5: Solve for x
    x = 1,979,071,498,446.31/1,448,549.45
  6. Step 6: Final answer
    x = 1,366,243.66

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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.