Finding the Fourth Proportional to 1,326,487.05, 1,990,118.16 and 427,908.96
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Solution
The fourth proportional to 1,326,487.05, 1,990,118.16 and 427,908.96 is: 641,988.47
Step by Step Solution
- Step 1: Write the proportion equation
1,326,487.05 : 1,990,118.16 = 427,908.96 : x - Step 2: Convert to fraction form
1,326,487.05/1,990,118.16 = 427,908.96/x - Step 3: Cross multiply
1,326,487.05x = 1,990,118.16 × 427,908.96 - Step 4: Simplify right side
1,326,487.05x = 851,589,392,122.71 - Step 5: Solve for x
x = 851,589,392,122.71/1,326,487.05 - Step 6: Final answer
x = 641,988.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.