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Finding the Fourth Proportional to 648,578.94, 973,466.42 and 328,955.10

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Solution

The fourth proportional to 648,578.94, 973,466.42 and 328,955.10 is: 493,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,578.94 : 973,466.42 = 328,955.10 : x
  2. Step 2: Convert to fraction form
    648,578.94/973,466.42 = 328,955.10/x
  3. Step 3: Cross multiply
    648,578.94x = 973,466.42 × 328,955.10
  4. Step 4: Simplify right side
    648,578.94x = 320,226,741,892.97
  5. Step 5: Solve for x
    x = 320,226,741,892.97/648,578.94
  6. Step 6: Final answer
    x = 493,735.95

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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.