Home / 385,091.20-576,081.60-333,078.40

Finding the Fourth Proportional to 385,091.20, 576,081.60 and 333,078.40

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Solution

The fourth proportional to 385,091.20, 576,081.60 and 333,078.40 is: 498,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,091.20 : 576,081.60 = 333,078.40 : x
  2. Step 2: Convert to fraction form
    385,091.20/576,081.60 = 333,078.40/x
  3. Step 3: Cross multiply
    385,091.20x = 576,081.60 × 333,078.40
  4. Step 4: Simplify right side
    385,091.20x = 191,880,337,597.44
  5. Step 5: Solve for x
    x = 191,880,337,597.44/385,091.20
  6. Step 6: Final answer
    x = 498,272.45

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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.