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Finding the Fourth Proportional to 492,668.87, 737,563.93 and 445,393.22

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Solution

The fourth proportional to 492,668.87, 737,563.93 and 445,393.22 is: 666,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,668.87 : 737,563.93 = 445,393.22 : x
  2. Step 2: Convert to fraction form
    492,668.87/737,563.93 = 445,393.22/x
  3. Step 3: Cross multiply
    492,668.87x = 737,563.93 × 445,393.22
  4. Step 4: Simplify right side
    492,668.87x = 328,505,968,937.25
  5. Step 5: Solve for x
    x = 328,505,968,937.25/492,668.87
  6. Step 6: Final answer
    x = 666,788.57

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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.