Finding the Fourth Proportional to 810,845.74, 1,118,881.35 and 448,211.07
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Solution
The fourth proportional to 810,845.74, 1,118,881.35 and 448,211.07 is: 618,483.86
Step by Step Solution
- Step 1: Write the proportion equation
810,845.74 : 1,118,881.35 = 448,211.07 : x - Step 2: Convert to fraction form
810,845.74/1,118,881.35 = 448,211.07/x - Step 3: Cross multiply
810,845.74x = 1,118,881.35 × 448,211.07 - Step 4: Simplify right side
810,845.74x = 501,495,007,086.55 - Step 5: Solve for x
x = 501,495,007,086.55/810,845.74 - Step 6: Final answer
x = 618,483.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.