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Finding the Fourth Proportional to 603,739.58, 905,640.35 and 154,464.32

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Solution

The fourth proportional to 603,739.58, 905,640.35 and 154,464.32 is: 231,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,739.58 : 905,640.35 = 154,464.32 : x
  2. Step 2: Convert to fraction form
    603,739.58/905,640.35 = 154,464.32/x
  3. Step 3: Cross multiply
    603,739.58x = 905,640.35 × 154,464.32
  4. Step 4: Simplify right side
    603,739.58x = 139,889,117,224.86
  5. Step 5: Solve for x
    x = 139,889,117,224.86/603,739.58
  6. Step 6: Final answer
    x = 231,704.40

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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.