Finding the Fourth Proportional to 911,487.09, 1,367,396.64 and 312,508.74
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Solution
The fourth proportional to 911,487.09, 1,367,396.64 and 312,508.74 is: 468,820.03
Step by Step Solution
- Step 1: Write the proportion equation
911,487.09 : 1,367,396.64 = 312,508.74 : x - Step 2: Convert to fraction form
911,487.09/1,367,396.64 = 312,508.74/x - Step 3: Cross multiply
911,487.09x = 1,367,396.64 × 312,508.74 - Step 4: Simplify right side
911,487.09x = 427,323,401,046.63 - Step 5: Solve for x
x = 427,323,401,046.63/911,487.09 - Step 6: Final answer
x = 468,820.03
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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.