Home / 1,703,642.62-2,351,028.48-978,630.65

Finding the Fourth Proportional to 1,703,642.62, 2,351,028.48 and 978,630.65

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Solution

The fourth proportional to 1,703,642.62, 2,351,028.48 and 978,630.65 is: 1,350,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703,642.62 : 2,351,028.48 = 978,630.65 : x
  2. Step 2: Convert to fraction form
    1,703,642.62/2,351,028.48 = 978,630.65/x
  3. Step 3: Cross multiply
    1,703,642.62x = 2,351,028.48 × 978,630.65
  4. Step 4: Simplify right side
    1,703,642.62x = 2,300,788,529,550.91
  5. Step 5: Solve for x
    x = 2,300,788,529,550.91/1,703,642.62
  6. Step 6: Final answer
    x = 1,350,511.25

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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.