Finding the Fourth Proportional to 718,328.25, 1,077,497.78 and 318,861.63
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Solution
The fourth proportional to 718,328.25, 1,077,497.78 and 318,861.63 is: 478,294.84
Step by Step Solution
- Step 1: Write the proportion equation
718,328.25 : 1,077,497.78 = 318,861.63 : x - Step 2: Convert to fraction form
718,328.25/1,077,497.78 = 318,861.63/x - Step 3: Cross multiply
718,328.25x = 1,077,497.78 × 318,861.63 - Step 4: Simplify right side
718,328.25x = 343,572,698,452.18 - Step 5: Solve for x
x = 343,572,698,452.18/718,328.25 - Step 6: Final answer
x = 478,294.84
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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.