Finding the Fourth Proportional to 1,590,139.62, 2,194,451.19 and 911,207.34
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Solution
The fourth proportional to 1,590,139.62, 2,194,451.19 and 911,207.34 is: 1,257,499.66
Step by Step Solution
- Step 1: Write the proportion equation
1,590,139.62 : 2,194,451.19 = 911,207.34 : x - Step 2: Convert to fraction form
1,590,139.62/2,194,451.19 = 911,207.34/x - Step 3: Cross multiply
1,590,139.62x = 2,194,451.19 × 911,207.34 - Step 4: Simplify right side
1,590,139.62x = 1,999,600,031,599.73 - Step 5: Solve for x
x = 1,999,600,031,599.73/1,590,139.62 - Step 6: Final answer
x = 1,257,499.66
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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.