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Finding the Fourth Proportional to 557,960.54, 770,069.60 and 340,295.49

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Solution

The fourth proportional to 557,960.54, 770,069.60 and 340,295.49 is: 469,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,960.54 : 770,069.60 = 340,295.49 : x
  2. Step 2: Convert to fraction form
    557,960.54/770,069.60 = 340,295.49/x
  3. Step 3: Cross multiply
    557,960.54x = 770,069.60 × 340,295.49
  4. Step 4: Simplify right side
    557,960.54x = 262,051,211,866.10
  5. Step 5: Solve for x
    x = 262,051,211,866.10/557,960.54
  6. Step 6: Final answer
    x = 469,659.04

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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.