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Finding the Fourth Proportional to 629,287.52, 868,422.74 and 357,361.07

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Solution

The fourth proportional to 629,287.52, 868,422.74 and 357,361.07 is: 493,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,287.52 : 868,422.74 = 357,361.07 : x
  2. Step 2: Convert to fraction form
    629,287.52/868,422.74 = 357,361.07/x
  3. Step 3: Cross multiply
    629,287.52x = 868,422.74 × 357,361.07
  4. Step 4: Simplify right side
    629,287.52x = 310,340,473,449.81
  5. Step 5: Solve for x
    x = 310,340,473,449.81/629,287.52
  6. Step 6: Final answer
    x = 493,161.66

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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.