Finding the Fourth Proportional to 1,678,381.92, 2,317,024.80 and 1,137,376.08
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Solution
The fourth proportional to 1,678,381.92, 2,317,024.80 and 1,137,376.08 is: 1,570,160.26
Step by Step Solution
- Step 1: Write the proportion equation
1,678,381.92 : 2,317,024.80 = 1,137,376.08 : x - Step 2: Convert to fraction form
1,678,381.92/2,317,024.80 = 1,137,376.08/x - Step 3: Cross multiply
1,678,381.92x = 2,317,024.80 × 1,137,376.08 - Step 4: Simplify right side
1,678,381.92x = 2,635,328,584,286.78 - Step 5: Solve for x
x = 2,635,328,584,286.78/1,678,381.92 - Step 6: Final answer
x = 1,570,160.26
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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.