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Finding the Fourth Proportional to 610,684.58, 842,749.80 and 338,770.31

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Solution

The fourth proportional to 610,684.58, 842,749.80 and 338,770.31 is: 467,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,684.58 : 842,749.80 = 338,770.31 : x
  2. Step 2: Convert to fraction form
    610,684.58/842,749.80 = 338,770.31/x
  3. Step 3: Cross multiply
    610,684.58x = 842,749.80 × 338,770.31
  4. Step 4: Simplify right side
    610,684.58x = 285,498,610,998.44
  5. Step 5: Solve for x
    x = 285,498,610,998.44/610,684.58
  6. Step 6: Final answer
    x = 467,505.85

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1.5x scale

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.