Home / 1,486,485.40-2,052,201.18-978,664

Finding the Fourth Proportional to 1,486,485.40, 2,052,201.18 and 978,664

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Solution

The fourth proportional to 1,486,485.40, 2,052,201.18 and 978,664 is: 1,351,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,485.40 : 2,052,201.18 = 978,664 : x
  2. Step 2: Convert to fraction form
    1,486,485.40/2,052,201.18 = 978,664/x
  3. Step 3: Cross multiply
    1,486,485.40x = 2,052,201.18 × 978,664
  4. Step 4: Simplify right side
    1,486,485.40x = 2,008,415,415,623.52
  5. Step 5: Solve for x
    x = 2,008,415,415,623.52/1,486,485.40
  6. Step 6: Final answer
    x = 1,351,116.81

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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.