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Finding the Fourth Proportional to 439,950.60, 660,727.80 and 384,838.20

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Solution

The fourth proportional to 439,950.60, 660,727.80 and 384,838.20 is: 577,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,950.60 : 660,727.80 = 384,838.20 : x
  2. Step 2: Convert to fraction form
    439,950.60/660,727.80 = 384,838.20/x
  3. Step 3: Cross multiply
    439,950.60x = 660,727.80 × 384,838.20
  4. Step 4: Simplify right side
    439,950.60x = 254,273,297,241.96
  5. Step 5: Solve for x
    x = 254,273,297,241.96/439,950.60
  6. Step 6: Final answer
    x = 577,958.75

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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.