Finding the Fourth Proportional to 1,129,138.62, 1,558,204.65 and 612,902.76
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Solution
The fourth proportional to 1,129,138.62, 1,558,204.65 and 612,902.76 is: 845,802.20
Step by Step Solution
- Step 1: Write the proportion equation
1,129,138.62 : 1,558,204.65 = 612,902.76 : x - Step 2: Convert to fraction form
1,129,138.62/1,558,204.65 = 612,902.76/x - Step 3: Cross multiply
1,129,138.62x = 1,558,204.65 × 612,902.76 - Step 4: Simplify right side
1,129,138.62x = 955,027,930,629.83 - Step 5: Solve for x
x = 955,027,930,629.83/1,129,138.62 - Step 6: Final answer
x = 845,802.20
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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.