Home / 412,024.80-617,979.60-131,570.40

Finding the Fourth Proportional to 412,024.80, 617,979.60 and 131,570.40

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Solution

The fourth proportional to 412,024.80, 617,979.60 and 131,570.40 is: 197,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,024.80 : 617,979.60 = 131,570.40 : x
  2. Step 2: Convert to fraction form
    412,024.80/617,979.60 = 131,570.40/x
  3. Step 3: Cross multiply
    412,024.80x = 617,979.60 × 131,570.40
  4. Step 4: Simplify right side
    412,024.80x = 81,307,823,163.84
  5. Step 5: Solve for x
    x = 81,307,823,163.84/412,024.80
  6. Step 6: Final answer
    x = 197,337.21

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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.