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Finding the Fourth Proportional to 483,617.66, 667,339.37 and 279,637.71

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Solution

The fourth proportional to 483,617.66, 667,339.37 and 279,637.71 is: 385,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,617.66 : 667,339.37 = 279,637.71 : x
  2. Step 2: Convert to fraction form
    483,617.66/667,339.37 = 279,637.71/x
  3. Step 3: Cross multiply
    483,617.66x = 667,339.37 × 279,637.71
  4. Step 4: Simplify right side
    483,617.66x = 186,613,253,817.43
  5. Step 5: Solve for x
    x = 186,613,253,817.43/483,617.66
  6. Step 6: Final answer
    x = 385,869.40

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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.