Home / 1,395,910.64-2,089,732.52-861,714.02

Finding the Fourth Proportional to 1,395,910.64, 2,089,732.52 and 861,714.02

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Solution

The fourth proportional to 1,395,910.64, 2,089,732.52 and 861,714.02 is: 1,290,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,910.64 : 2,089,732.52 = 861,714.02 : x
  2. Step 2: Convert to fraction form
    1,395,910.64/2,089,732.52 = 861,714.02/x
  3. Step 3: Cross multiply
    1,395,910.64x = 2,089,732.52 × 861,714.02
  4. Step 4: Simplify right side
    1,395,910.64x = 1,800,751,810,533.93
  5. Step 5: Solve for x
    x = 1,800,751,810,533.93/1,395,910.64
  6. Step 6: Final answer
    x = 1,290,019.40

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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.