Home / 1,521,285.03-2,100,795.62-978,363.54

Finding the Fourth Proportional to 1,521,285.03, 2,100,795.62 and 978,363.54

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Solution

The fourth proportional to 1,521,285.03, 2,100,795.62 and 978,363.54 is: 1,351,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,285.03 : 2,100,795.62 = 978,363.54 : x
  2. Step 2: Convert to fraction form
    1,521,285.03/2,100,795.62 = 978,363.54/x
  3. Step 3: Cross multiply
    1,521,285.03x = 2,100,795.62 × 978,363.54
  4. Step 4: Simplify right side
    1,521,285.03x = 2,055,341,834,707.88
  5. Step 5: Solve for x
    x = 2,055,341,834,707.88/1,521,285.03
  6. Step 6: Final answer
    x = 1,351,056.37

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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.