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Finding the Fourth Proportional to 451,903.39, 623,059.26 and 330,834.49

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Solution

The fourth proportional to 451,903.39, 623,059.26 and 330,834.49 is: 456,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,903.39 : 623,059.26 = 330,834.49 : x
  2. Step 2: Convert to fraction form
    451,903.39/623,059.26 = 330,834.49/x
  3. Step 3: Cross multiply
    451,903.39x = 623,059.26 × 330,834.49
  4. Step 4: Simplify right side
    451,903.39x = 206,129,490,343.92
  5. Step 5: Solve for x
    x = 206,129,490,343.92/451,903.39
  6. Step 6: Final answer
    x = 456,136.19

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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.