Finding the Fourth Proportional to 710,438.08, 980,418.66 and 388,168.18
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Solution
The fourth proportional to 710,438.08, 980,418.66 and 388,168.18 is: 535,679.80
Step by Step Solution
- Step 1: Write the proportion equation
710,438.08 : 980,418.66 = 388,168.18 : x - Step 2: Convert to fraction form
710,438.08/980,418.66 = 388,168.18/x - Step 3: Cross multiply
710,438.08x = 980,418.66 × 388,168.18 - Step 4: Simplify right side
710,438.08x = 380,567,326,890.24 - Step 5: Solve for x
x = 380,567,326,890.24/710,438.08 - Step 6: Final answer
x = 535,679.80
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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.