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Finding the Fourth Proportional to 479,448.21, 661,887.29 and 350,241.60

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Solution

The fourth proportional to 479,448.21, 661,887.29 and 350,241.60 is: 483,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,448.21 : 661,887.29 = 350,241.60 : x
  2. Step 2: Convert to fraction form
    479,448.21/661,887.29 = 350,241.60/x
  3. Step 3: Cross multiply
    479,448.21x = 661,887.29 × 350,241.60
  4. Step 4: Simplify right side
    479,448.21x = 231,820,461,718.06
  5. Step 5: Solve for x
    x = 231,820,461,718.06/479,448.21
  6. Step 6: Final answer
    x = 483,515.13

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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.