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Finding the Fourth Proportional to 608,917.60, 913,635.60 and 384,450.40

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Solution

The fourth proportional to 608,917.60, 913,635.60 and 384,450.40 is: 576,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,917.60 : 913,635.60 = 384,450.40 : x
  2. Step 2: Convert to fraction form
    608,917.60/913,635.60 = 384,450.40/x
  3. Step 3: Cross multiply
    608,917.60x = 913,635.60 × 384,450.40
  4. Step 4: Simplify right side
    608,917.60x = 351,247,571,874.24
  5. Step 5: Solve for x
    x = 351,247,571,874.24/608,917.60
  6. Step 6: Final answer
    x = 576,839.25

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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.