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Finding the Fourth Proportional to 718,563.84, 1,078,079.04 and 344,616

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Solution

The fourth proportional to 718,563.84, 1,078,079.04 and 344,616 is: 517,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,563.84 : 1,078,079.04 = 344,616 : x
  2. Step 2: Convert to fraction form
    718,563.84/1,078,079.04 = 344,616/x
  3. Step 3: Cross multiply
    718,563.84x = 1,078,079.04 × 344,616
  4. Step 4: Simplify right side
    718,563.84x = 371,523,286,448.64
  5. Step 5: Solve for x
    x = 371,523,286,448.64/718,563.84
  6. Step 6: Final answer
    x = 517,035.88

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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.