Finding the Fourth Proportional to 1,129,703.52, 1,558,990.86 and 620,405.94
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Solution
The fourth proportional to 1,129,703.52, 1,558,990.86 and 620,405.94 is: 856,160.20
Step by Step Solution
- Step 1: Write the proportion equation
1,129,703.52 : 1,558,990.86 = 620,405.94 : x - Step 2: Convert to fraction form
1,129,703.52/1,558,990.86 = 620,405.94/x - Step 3: Cross multiply
1,129,703.52x = 1,558,990.86 × 620,405.94 - Step 4: Simplify right side
1,129,703.52x = 967,207,189,949.71 - Step 5: Solve for x
x = 967,207,189,949.71/1,129,703.52 - Step 6: Final answer
x = 856,160.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.