Home / 769,383.96-1,153,930.98-208,344.60

Finding the Fourth Proportional to 769,383.96, 1,153,930.98 and 208,344.60

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Solution

The fourth proportional to 769,383.96, 1,153,930.98 and 208,344.60 is: 312,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,383.96 : 1,153,930.98 = 208,344.60 : x
  2. Step 2: Convert to fraction form
    769,383.96/1,153,930.98 = 208,344.60/x
  3. Step 3: Cross multiply
    769,383.96x = 1,153,930.98 × 208,344.60
  4. Step 4: Simplify right side
    769,383.96x = 240,415,288,455.71
  5. Step 5: Solve for x
    x = 240,415,288,455.71/769,383.96
  6. Step 6: Final answer
    x = 312,477.65

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1.5x scale

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.