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Finding the Fourth Proportional to 603,632.55, 905,558.18 and 303,357.45

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Solution

The fourth proportional to 603,632.55, 905,558.18 and 303,357.45 is: 455,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,632.55 : 905,558.18 = 303,357.45 : x
  2. Step 2: Convert to fraction form
    603,632.55/905,558.18 = 303,357.45/x
  3. Step 3: Cross multiply
    603,632.55x = 905,558.18 × 303,357.45
  4. Step 4: Simplify right side
    603,632.55x = 274,707,818,794.65
  5. Step 5: Solve for x
    x = 274,707,818,794.65/603,632.55
  6. Step 6: Final answer
    x = 455,091.13

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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.