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Finding the Fourth Proportional to 629,748.54, 869,062.10 and 343,268.69

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Solution

The fourth proportional to 629,748.54, 869,062.10 and 343,268.69 is: 473,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,748.54 : 869,062.10 = 343,268.69 : x
  2. Step 2: Convert to fraction form
    629,748.54/869,062.10 = 343,268.69/x
  3. Step 3: Cross multiply
    629,748.54x = 869,062.10 × 343,268.69
  4. Step 4: Simplify right side
    629,748.54x = 298,321,802,534.00
  5. Step 5: Solve for x
    x = 298,321,802,534.00/629,748.54
  6. Step 6: Final answer
    x = 473,715.75

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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.