Home / 1,703,391.58-2,350,821.69-978,379.21

Finding the Fourth Proportional to 1,703,391.58, 2,350,821.69 and 978,379.21

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Solution

The fourth proportional to 1,703,391.58, 2,350,821.69 and 978,379.21 is: 1,350,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703,391.58 : 2,350,821.69 = 978,379.21 : x
  2. Step 2: Convert to fraction form
    1,703,391.58/2,350,821.69 = 978,379.21/x
  3. Step 3: Cross multiply
    1,703,391.58x = 2,350,821.69 × 978,379.21
  4. Step 4: Simplify right side
    1,703,391.58x = 2,299,995,062,036.01
  5. Step 5: Solve for x
    x = 2,299,995,062,036.01/1,703,391.58
  6. Step 6: Final answer
    x = 1,350,244.47

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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.