Home / 1,431,745.20-2,147,617.80-632,615.40

Finding the Fourth Proportional to 1,431,745.20, 2,147,617.80 and 632,615.40

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Solution

The fourth proportional to 1,431,745.20, 2,147,617.80 and 632,615.40 is: 948,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,745.20 : 2,147,617.80 = 632,615.40 : x
  2. Step 2: Convert to fraction form
    1,431,745.20/2,147,617.80 = 632,615.40/x
  3. Step 3: Cross multiply
    1,431,745.20x = 2,147,617.80 × 632,615.40
  4. Step 4: Simplify right side
    1,431,745.20x = 1,358,616,093,594.12
  5. Step 5: Solve for x
    x = 1,358,616,093,594.12/1,431,745.20
  6. Step 6: Final answer
    x = 948,923.10

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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.