Home / 1,521,283.53-2,100,793.55-978,362.04

Finding the Fourth Proportional to 1,521,283.53, 2,100,793.55 and 978,362.04

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Solution

The fourth proportional to 1,521,283.53, 2,100,793.55 and 978,362.04 is: 1,351,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,283.53 : 2,100,793.55 = 978,362.04 : x
  2. Step 2: Convert to fraction form
    1,521,283.53/2,100,793.55 = 978,362.04/x
  3. Step 3: Cross multiply
    1,521,283.53x = 2,100,793.55 × 978,362.04
  4. Step 4: Simplify right side
    1,521,283.53x = 2,055,336,658,305.03
  5. Step 5: Solve for x
    x = 2,055,336,658,305.03/1,521,283.53
  6. Step 6: Final answer
    x = 1,351,054.30

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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.