Home / 1,449,246.40-2,176,202.40-978,020.80

Finding the Fourth Proportional to 1,449,246.40, 2,176,202.40 and 978,020.80

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Solution

The fourth proportional to 1,449,246.40, 2,176,202.40 and 978,020.80 is: 1,468,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,246.40 : 2,176,202.40 = 978,020.80 : x
  2. Step 2: Convert to fraction form
    1,449,246.40/2,176,202.40 = 978,020.80/x
  3. Step 3: Cross multiply
    1,449,246.40x = 2,176,202.40 × 978,020.80
  4. Step 4: Simplify right side
    1,449,246.40x = 2,128,371,212,209.92
  5. Step 5: Solve for x
    x = 2,128,371,212,209.92/1,449,246.40
  6. Step 6: Final answer
    x = 1,468,605.49

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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.