Finding the Fourth Proportional to 1,515,631.24, 2,091,438.66 and 970,805.80
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Solution
The fourth proportional to 1,515,631.24, 2,091,438.66 and 970,805.80 is: 1,339,627.17
Step by Step Solution
- Step 1: Write the proportion equation
1,515,631.24 : 2,091,438.66 = 970,805.80 : x - Step 2: Convert to fraction form
1,515,631.24/2,091,438.66 = 970,805.80/x - Step 3: Cross multiply
1,515,631.24x = 2,091,438.66 × 970,805.80 - Step 4: Simplify right side
1,515,631.24x = 2,030,380,781,472.23 - Step 5: Solve for x
x = 2,030,380,781,472.23/1,515,631.24 - Step 6: Final answer
x = 1,339,627.17
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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.