Finding the Fourth Proportional to 1,297,864.42, 1,791,089 and 717,124.96
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Solution
The fourth proportional to 1,297,864.42, 1,791,089 and 717,124.96 is: 989,652.39
Step by Step Solution
- Step 1: Write the proportion equation
1,297,864.42 : 1,791,089 = 717,124.96 : x - Step 2: Convert to fraction form
1,297,864.42/1,791,089 = 717,124.96/x - Step 3: Cross multiply
1,297,864.42x = 1,791,089 × 717,124.96 - Step 4: Simplify right side
1,297,864.42x = 1,284,434,627,481.44 - Step 5: Solve for x
x = 1,284,434,627,481.44/1,297,864.42 - Step 6: Final answer
x = 989,652.39
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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.