Home / 769,181.58-1,154,185.47-320,212.35

Finding the Fourth Proportional to 769,181.58, 1,154,185.47 and 320,212.35

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Solution

The fourth proportional to 769,181.58, 1,154,185.47 and 320,212.35 is: 480,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,181.58 : 1,154,185.47 = 320,212.35 : x
  2. Step 2: Convert to fraction form
    769,181.58/1,154,185.47 = 320,212.35/x
  3. Step 3: Cross multiply
    769,181.58x = 1,154,185.47 × 320,212.35
  4. Step 4: Simplify right side
    769,181.58x = 369,584,441,684.55
  5. Step 5: Solve for x
    x = 369,584,441,684.55/769,181.58
  6. Step 6: Final answer
    x = 480,490.50

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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.