Finding the Fourth Proportional to 790,258.67, 1,090,557.05 and 427,685.15
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Solution
The fourth proportional to 790,258.67, 1,090,557.05 and 427,685.15 is: 590,205.55
Step by Step Solution
- Step 1: Write the proportion equation
790,258.67 : 1,090,557.05 = 427,685.15 : x - Step 2: Convert to fraction form
790,258.67/1,090,557.05 = 427,685.15/x - Step 3: Cross multiply
790,258.67x = 1,090,557.05 × 427,685.15 - Step 4: Simplify right side
790,258.67x = 466,415,055,512.81 - Step 5: Solve for x
x = 466,415,055,512.81/790,258.67 - Step 6: Final answer
x = 590,205.55
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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.