Home / 1,395,087.20-1,925,805.28-942,990.56

Finding the Fourth Proportional to 1,395,087.20, 1,925,805.28 and 942,990.56

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Solution

The fourth proportional to 1,395,087.20, 1,925,805.28 and 942,990.56 is: 1,301,722.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,087.20 : 1,925,805.28 = 942,990.56 : x
  2. Step 2: Convert to fraction form
    1,395,087.20/1,925,805.28 = 942,990.56/x
  3. Step 3: Cross multiply
    1,395,087.20x = 1,925,805.28 × 942,990.56
  4. Step 4: Simplify right side
    1,395,087.20x = 1,816,016,199,438.16
  5. Step 5: Solve for x
    x = 1,816,016,199,438.16/1,395,087.20
  6. Step 6: Final answer
    x = 1,301,722.36

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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.