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Finding the Fourth Proportional to 557,961.54, 770,070.98 and 340,296.49

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Solution

The fourth proportional to 557,961.54, 770,070.98 and 340,296.49 is: 469,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,961.54 : 770,070.98 = 340,296.49 : x
  2. Step 2: Convert to fraction form
    557,961.54/770,070.98 = 340,296.49/x
  3. Step 3: Cross multiply
    557,961.54x = 770,070.98 × 340,296.49
  4. Step 4: Simplify right side
    557,961.54x = 262,052,451,544.86
  5. Step 5: Solve for x
    x = 262,052,451,544.86/557,961.54
  6. Step 6: Final answer
    x = 469,660.42

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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.