Home / 1,227,578.30-1,838,257.05-978,746.30

Finding the Fourth Proportional to 1,227,578.30, 1,838,257.05 and 978,746.30

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Solution

The fourth proportional to 1,227,578.30, 1,838,257.05 and 978,746.30 is: 1,465,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,578.30 : 1,838,257.05 = 978,746.30 : x
  2. Step 2: Convert to fraction form
    1,227,578.30/1,838,257.05 = 978,746.30/x
  3. Step 3: Cross multiply
    1,227,578.30x = 1,838,257.05 × 978,746.30
  4. Step 4: Simplify right side
    1,227,578.30x = 1,799,187,286,136.42
  5. Step 5: Solve for x
    x = 1,799,187,286,136.42/1,227,578.30
  6. Step 6: Final answer
    x = 1,465,639.53

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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.