Home / 1,493,816.40-2,238,262.20-861,627.60

Finding the Fourth Proportional to 1,493,816.40, 2,238,262.20 and 861,627.60

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Solution

The fourth proportional to 1,493,816.40, 2,238,262.20 and 861,627.60 is: 1,291,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,816.40 : 2,238,262.20 = 861,627.60 : x
  2. Step 2: Convert to fraction form
    1,493,816.40/2,238,262.20 = 861,627.60/x
  3. Step 3: Cross multiply
    1,493,816.40x = 2,238,262.20 × 861,627.60
  4. Step 4: Simplify right side
    1,493,816.40x = 1,928,548,487,556.72
  5. Step 5: Solve for x
    x = 1,928,548,487,556.72/1,493,816.40
  6. Step 6: Final answer
    x = 1,291,021.10

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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.