Finding the Fourth Proportional to 658,015.68, 908,079.12 and 399,804.96
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Solution
The fourth proportional to 658,015.68, 908,079.12 and 399,804.96 is: 551,741.47
Step by Step Solution
- Step 1: Write the proportion equation
658,015.68 : 908,079.12 = 399,804.96 : x - Step 2: Convert to fraction form
658,015.68/908,079.12 = 399,804.96/x - Step 3: Cross multiply
658,015.68x = 908,079.12 × 399,804.96 - Step 4: Simplify right side
658,015.68x = 363,054,536,248.44 - Step 5: Solve for x
x = 363,054,536,248.44/658,015.68 - Step 6: Final answer
x = 551,741.47
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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.