Finding the Fourth Proportional to 1,129,235.42, 1,558,349.11 and 612,990.33
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Solution
The fourth proportional to 1,129,235.42, 1,558,349.11 and 612,990.33 is: 845,928.95
Step by Step Solution
- Step 1: Write the proportion equation
1,129,235.42 : 1,558,349.11 = 612,990.33 : x - Step 2: Convert to fraction form
1,129,235.42/1,558,349.11 = 612,990.33/x - Step 3: Cross multiply
1,129,235.42x = 1,558,349.11 × 612,990.33 - Step 4: Simplify right side
1,129,235.42x = 955,252,935,194.11 - Step 5: Solve for x
x = 955,252,935,194.11/1,129,235.42 - Step 6: Final answer
x = 845,928.95
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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.