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Finding the Fourth Proportional to 603,847.53, 833,495.27 and 388,986.93

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Solution

The fourth proportional to 603,847.53, 833,495.27 and 388,986.93 is: 536,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,847.53 : 833,495.27 = 388,986.93 : x
  2. Step 2: Convert to fraction form
    603,847.53/833,495.27 = 388,986.93/x
  3. Step 3: Cross multiply
    603,847.53x = 833,495.27 × 388,986.93
  4. Step 4: Simplify right side
    603,847.53x = 324,218,764,301.89
  5. Step 5: Solve for x
    x = 324,218,764,301.89/603,847.53
  6. Step 6: Final answer
    x = 536,921.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.