Home / 1,449,242.40-2,176,196.40-978,016.80

Finding the Fourth Proportional to 1,449,242.40, 2,176,196.40 and 978,016.80

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Solution

The fourth proportional to 1,449,242.40, 2,176,196.40 and 978,016.80 is: 1,468,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,242.40 : 2,176,196.40 = 978,016.80 : x
  2. Step 2: Convert to fraction form
    1,449,242.40/2,176,196.40 = 978,016.80/x
  3. Step 3: Cross multiply
    1,449,242.40x = 2,176,196.40 × 978,016.80
  4. Step 4: Simplify right side
    1,449,242.40x = 2,128,356,639,299.52
  5. Step 5: Solve for x
    x = 2,128,356,639,299.52/1,449,242.40
  6. Step 6: Final answer
    x = 1,468,599.48

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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.