Home / 2,871,218.40-4,307,410.80-978,151.20

Finding the Fourth Proportional to 2,871,218.40, 4,307,410.80 and 978,151.20

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Solution

The fourth proportional to 2,871,218.40, 4,307,410.80 and 978,151.20 is: 1,467,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,218.40 : 4,307,410.80 = 978,151.20 : x
  2. Step 2: Convert to fraction form
    2,871,218.40/4,307,410.80 = 978,151.20/x
  3. Step 3: Cross multiply
    2,871,218.40x = 4,307,410.80 × 978,151.20
  4. Step 4: Simplify right side
    2,871,218.40x = 4,213,299,042,912.96
  5. Step 5: Solve for x
    x = 4,213,299,042,912.96/2,871,218.40
  6. Step 6: Final answer
    x = 1,467,425.48

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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.