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Finding the Fourth Proportional to 629,557.96, 868,764.54 and 343,071.88

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Solution

The fourth proportional to 629,557.96, 868,764.54 and 343,071.88 is: 473,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,557.96 : 868,764.54 = 343,071.88 : x
  2. Step 2: Convert to fraction form
    629,557.96/868,764.54 = 343,071.88/x
  3. Step 3: Cross multiply
    629,557.96x = 868,764.54 × 343,071.88
  4. Step 4: Simplify right side
    629,557.96x = 298,048,684,015.14
  5. Step 5: Solve for x
    x = 298,048,684,015.14/629,557.96
  6. Step 6: Final answer
    x = 473,425.33

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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.