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Finding the Fourth Proportional to 455,539.60, 683,309.40 and 329,568.40

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Solution

The fourth proportional to 455,539.60, 683,309.40 and 329,568.40 is: 494,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,539.60 : 683,309.40 = 329,568.40 : x
  2. Step 2: Convert to fraction form
    455,539.60/683,309.40 = 329,568.40/x
  3. Step 3: Cross multiply
    455,539.60x = 683,309.40 × 329,568.40
  4. Step 4: Simplify right side
    455,539.60x = 225,197,185,662.96
  5. Step 5: Solve for x
    x = 225,197,185,662.96/455,539.60
  6. Step 6: Final answer
    x = 494,352.60

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Similar ratio
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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.