Home / 330,419.20-496,017.60-328,086.40

Finding the Fourth Proportional to 330,419.20, 496,017.60 and 328,086.40

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Solution

The fourth proportional to 330,419.20, 496,017.60 and 328,086.40 is: 492,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,419.20 : 496,017.60 = 328,086.40 : x
  2. Step 2: Convert to fraction form
    330,419.20/496,017.60 = 328,086.40/x
  3. Step 3: Cross multiply
    330,419.20x = 496,017.60 × 328,086.40
  4. Step 4: Simplify right side
    330,419.20x = 162,736,628,720.64
  5. Step 5: Solve for x
    x = 162,736,628,720.64/330,419.20
  6. Step 6: Final answer
    x = 492,515.66

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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.