Finding the Fourth Proportional to 862,198.79, 1,291,089.96 and 719,689.75
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Solution
The fourth proportional to 862,198.79, 1,291,089.96 and 719,689.75 is: 1,077,691.39
Step by Step Solution
- Step 1: Write the proportion equation
862,198.79 : 1,291,089.96 = 719,689.75 : x - Step 2: Convert to fraction form
862,198.79/1,291,089.96 = 719,689.75/x - Step 3: Cross multiply
862,198.79x = 1,291,089.96 × 719,689.75 - Step 4: Simplify right side
862,198.79x = 929,184,207,312.19 - Step 5: Solve for x
x = 929,184,207,312.19/862,198.79 - Step 6: Final answer
x = 1,077,691.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.