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Finding the Fourth Proportional to 490,736.63, 677,732.81 and 437,242.95

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Solution

The fourth proportional to 490,736.63, 677,732.81 and 437,242.95 is: 603,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,736.63 : 677,732.81 = 437,242.95 : x
  2. Step 2: Convert to fraction form
    490,736.63/677,732.81 = 437,242.95/x
  3. Step 3: Cross multiply
    490,736.63x = 677,732.81 × 437,242.95
  4. Step 4: Simplify right side
    490,736.63x = 296,333,890,969.98
  5. Step 5: Solve for x
    x = 296,333,890,969.98/490,736.63
  6. Step 6: Final answer
    x = 603,855.25

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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.