Finding the Fourth Proportional to 718,421.08, 1,077,631.62 and 318,967.96
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Solution
The fourth proportional to 718,421.08, 1,077,631.62 and 318,967.96 is: 478,451.94
Step by Step Solution
- Step 1: Write the proportion equation
718,421.08 : 1,077,631.62 = 318,967.96 : x - Step 2: Convert to fraction form
718,421.08/1,077,631.62 = 318,967.96/x - Step 3: Cross multiply
718,421.08x = 1,077,631.62 × 318,967.96 - Step 4: Simplify right side
718,421.08x = 343,729,959,462.90 - Step 5: Solve for x
x = 343,729,959,462.90/718,421.08 - Step 6: Final answer
x = 478,451.94
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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.