Home / 829,138.80-1,244,015.40-330,860.40

Finding the Fourth Proportional to 829,138.80, 1,244,015.40 and 330,860.40

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Solution

The fourth proportional to 829,138.80, 1,244,015.40 and 330,860.40 is: 496,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,138.80 : 1,244,015.40 = 330,860.40 : x
  2. Step 2: Convert to fraction form
    829,138.80/1,244,015.40 = 330,860.40/x
  3. Step 3: Cross multiply
    829,138.80x = 1,244,015.40 × 330,860.40
  4. Step 4: Simplify right side
    829,138.80x = 411,595,432,850.16
  5. Step 5: Solve for x
    x = 411,595,432,850.16/829,138.80
  6. Step 6: Final answer
    x = 496,413.19

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1.5x scale

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.