Finding the Fourth Proportional to 1,129,439.52, 1,558,651.68 and 620,143.92
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Solution
The fourth proportional to 1,129,439.52, 1,558,651.68 and 620,143.92 is: 855,812.41
Step by Step Solution
- Step 1: Write the proportion equation
1,129,439.52 : 1,558,651.68 = 620,143.92 : x - Step 2: Convert to fraction form
1,129,439.52/1,558,651.68 = 620,143.92/x - Step 3: Cross multiply
1,129,439.52x = 1,558,651.68 × 620,143.92 - Step 4: Simplify right side
1,129,439.52x = 966,588,362,749.79 - Step 5: Solve for x
x = 966,588,362,749.79/1,129,439.52 - Step 6: Final answer
x = 855,812.41
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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.