Finding the Fourth Proportional to 1,117,706.50, 1,542,435.15 and 608,412.70
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Solution
The fourth proportional to 1,117,706.50, 1,542,435.15 and 608,412.70 is: 839,609.62
Step by Step Solution
- Step 1: Write the proportion equation
1,117,706.50 : 1,542,435.15 = 608,412.70 : x - Step 2: Convert to fraction form
1,117,706.50/1,542,435.15 = 608,412.70/x - Step 3: Cross multiply
1,117,706.50x = 1,542,435.15 × 608,412.70 - Step 4: Simplify right side
1,117,706.50x = 938,437,134,186.41 - Step 5: Solve for x
x = 938,437,134,186.41/1,117,706.50 - Step 6: Final answer
x = 839,609.62
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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.