Finding the Fourth Proportional to 4,221,511.62, 5,825,691.08 and 2,287,772.20
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Solution
The fourth proportional to 4,221,511.62, 5,825,691.08 and 2,287,772.20 is: 3,157,128.37
Step by Step Solution
- Step 1: Write the proportion equation
4,221,511.62 : 5,825,691.08 = 2,287,772.20 : x - Step 2: Convert to fraction form
4,221,511.62/5,825,691.08 = 2,287,772.20/x - Step 3: Cross multiply
4,221,511.62x = 5,825,691.08 × 2,287,772.20 - Step 4: Simplify right side
4,221,511.62x = 13,327,854,098,611.98 - Step 5: Solve for x
x = 13,327,854,098,611.98/4,221,511.62 - Step 6: Final answer
x = 3,157,128.37
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1.5x scale
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.