Home / 1,395,402.60-2,090,052.24-989,364.03

Finding the Fourth Proportional to 1,395,402.60, 2,090,052.24 and 989,364.03

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Solution

The fourth proportional to 1,395,402.60, 2,090,052.24 and 989,364.03 is: 1,481,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,402.60 : 2,090,052.24 = 989,364.03 : x
  2. Step 2: Convert to fraction form
    1,395,402.60/2,090,052.24 = 989,364.03/x
  3. Step 3: Cross multiply
    1,395,402.60x = 2,090,052.24 × 989,364.03
  4. Step 4: Simplify right side
    1,395,402.60x = 2,067,822,507,076.93
  5. Step 5: Solve for x
    x = 2,067,822,507,076.93/1,395,402.60
  6. Step 6: Final answer
    x = 1,481,882.37

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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.