Finding the Fourth Proportional to 1,328,105.96, 1,990,776.54 and 994,671.08
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Solution
The fourth proportional to 1,328,105.96, 1,990,776.54 and 994,671.08 is: 1,490,971.29
Step by Step Solution
- Step 1: Write the proportion equation
1,328,105.96 : 1,990,776.54 = 994,671.08 : x - Step 2: Convert to fraction form
1,328,105.96/1,990,776.54 = 994,671.08/x - Step 3: Cross multiply
1,328,105.96x = 1,990,776.54 × 994,671.08 - Step 4: Simplify right side
1,328,105.96x = 1,980,167,851,080.46 - Step 5: Solve for x
x = 1,980,167,851,080.46/1,328,105.96 - Step 6: Final answer
x = 1,490,971.29
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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.