Home / 3,970,419.40-5,955,629.10-978,603.40

Finding the Fourth Proportional to 3,970,419.40, 5,955,629.10 and 978,603.40

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Solution

The fourth proportional to 3,970,419.40, 5,955,629.10 and 978,603.40 is: 1,467,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970,419.40 : 5,955,629.10 = 978,603.40 : x
  2. Step 2: Convert to fraction form
    3,970,419.40/5,955,629.10 = 978,603.40/x
  3. Step 3: Cross multiply
    3,970,419.40x = 5,955,629.10 × 978,603.40
  4. Step 4: Simplify right side
    3,970,419.40x = 5,828,198,886,398.94
  5. Step 5: Solve for x
    x = 5,828,198,886,398.94/3,970,419.40
  6. Step 6: Final answer
    x = 1,467,905.10

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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.