Home / 1,220,148.51-1,827,647.99-978,956.58

Finding the Fourth Proportional to 1,220,148.51, 1,827,647.99 and 978,956.58

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Solution

The fourth proportional to 1,220,148.51, 1,827,647.99 and 978,956.58 is: 1,466,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,148.51 : 1,827,647.99 = 978,956.58 : x
  2. Step 2: Convert to fraction form
    1,220,148.51/1,827,647.99 = 978,956.58/x
  3. Step 3: Cross multiply
    1,220,148.51x = 1,827,647.99 × 978,956.58
  4. Step 4: Simplify right side
    1,220,148.51x = 1,789,188,023,928.55
  5. Step 5: Solve for x
    x = 1,789,188,023,928.55/1,220,148.51
  6. Step 6: Final answer
    x = 1,466,369.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.