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Finding the Fourth Proportional to 694,232.43, 958,129.46 and 388,325.80

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Solution

The fourth proportional to 694,232.43, 958,129.46 and 388,325.80 is: 535,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,232.43 : 958,129.46 = 388,325.80 : x
  2. Step 2: Convert to fraction form
    694,232.43/958,129.46 = 388,325.80/x
  3. Step 3: Cross multiply
    694,232.43x = 958,129.46 × 388,325.80
  4. Step 4: Simplify right side
    694,232.43x = 372,066,389,058.07
  5. Step 5: Solve for x
    x = 372,066,389,058.07/694,232.43
  6. Step 6: Final answer
    x = 535,939.22

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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.