Finding the Fourth Proportional to 1,315,376.26, 1,973,690.97 and 911,191.12
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Solution
The fourth proportional to 1,315,376.26, 1,973,690.97 and 911,191.12 is: 1,367,220.73
Step by Step Solution
- Step 1: Write the proportion equation
1,315,376.26 : 1,973,690.97 = 911,191.12 : x - Step 2: Convert to fraction form
1,315,376.26/1,973,690.97 = 911,191.12/x - Step 3: Cross multiply
1,315,376.26x = 1,973,690.97 × 911,191.12 - Step 4: Simplify right side
1,315,376.26x = 1,798,409,685,488.19 - Step 5: Solve for x
x = 1,798,409,685,488.19/1,315,376.26 - Step 6: Final answer
x = 1,367,220.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.