Home / 1,421,235.10-2,132,958.16-991,982.32

Finding the Fourth Proportional to 1,421,235.10, 2,132,958.16 and 991,982.32

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Solution

The fourth proportional to 1,421,235.10, 2,132,958.16 and 991,982.32 is: 1,488,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,235.10 : 2,132,958.16 = 991,982.32 : x
  2. Step 2: Convert to fraction form
    1,421,235.10/2,132,958.16 = 991,982.32/x
  3. Step 3: Cross multiply
    1,421,235.10x = 2,132,958.16 × 991,982.32
  4. Step 4: Simplify right side
    1,421,235.10x = 2,115,856,784,019.73
  5. Step 5: Solve for x
    x = 2,115,856,784,019.73/1,421,235.10
  6. Step 6: Final answer
    x = 1,488,745.10

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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.