Finding the Fourth Proportional to 1,282,117.08, 1,923,276.78 and 429,193.80
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Solution
The fourth proportional to 1,282,117.08, 1,923,276.78 and 429,193.80 is: 643,824.56
Step by Step Solution
- Step 1: Write the proportion equation
1,282,117.08 : 1,923,276.78 = 429,193.80 : x - Step 2: Convert to fraction form
1,282,117.08/1,923,276.78 = 429,193.80/x - Step 3: Cross multiply
1,282,117.08x = 1,923,276.78 × 429,193.80 - Step 4: Simplify right side
1,282,117.08x = 825,458,469,659.96 - Step 5: Solve for x
x = 825,458,469,659.96/1,282,117.08 - Step 6: Final answer
x = 643,824.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.