Home / 769,183.58-1,154,188.47-320,214.35

Finding the Fourth Proportional to 769,183.58, 1,154,188.47 and 320,214.35

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Solution

The fourth proportional to 769,183.58, 1,154,188.47 and 320,214.35 is: 480,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,183.58 : 1,154,188.47 = 320,214.35 : x
  2. Step 2: Convert to fraction form
    769,183.58/1,154,188.47 = 320,214.35/x
  3. Step 3: Cross multiply
    769,183.58x = 1,154,188.47 × 320,214.35
  4. Step 4: Simplify right side
    769,183.58x = 369,587,710,698.55
  5. Step 5: Solve for x
    x = 369,587,710,698.55/769,183.58
  6. Step 6: Final answer
    x = 480,493.50

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Double scale
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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.