Home / 1,486,143.12-2,051,727.84-978,321.84

Finding the Fourth Proportional to 1,486,143.12, 2,051,727.84 and 978,321.84

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Solution

The fourth proportional to 1,486,143.12, 2,051,727.84 and 978,321.84 is: 1,350,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,143.12 : 2,051,727.84 = 978,321.84 : x
  2. Step 2: Convert to fraction form
    1,486,143.12/2,051,727.84 = 978,321.84/x
  3. Step 3: Cross multiply
    1,486,143.12x = 2,051,727.84 × 978,321.84
  4. Step 4: Simplify right side
    1,486,143.12x = 2,007,250,155,608.03
  5. Step 5: Solve for x
    x = 2,007,250,155,608.03/1,486,143.12
  6. Step 6: Final answer
    x = 1,350,643.91

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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.