Home / 1,486,476.40-2,052,188.60-978,655

Finding the Fourth Proportional to 1,486,476.40, 2,052,188.60 and 978,655

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Solution

The fourth proportional to 1,486,476.40, 2,052,188.60 and 978,655 is: 1,351,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,476.40 : 2,052,188.60 = 978,655 : x
  2. Step 2: Convert to fraction form
    1,486,476.40/2,052,188.60 = 978,655/x
  3. Step 3: Cross multiply
    1,486,476.40x = 2,052,188.60 × 978,655
  4. Step 4: Simplify right side
    1,486,476.40x = 2,008,384,634,333
  5. Step 5: Solve for x
    x = 2,008,384,634,333/1,486,476.40
  6. Step 6: Final answer
    x = 1,351,104.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.