Finding the Fourth Proportional to 658,433.05, 908,711.36 and 371,971.60
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Solution
The fourth proportional to 658,433.05, 908,711.36 and 371,971.60 is: 513,362.47
Step by Step Solution
- Step 1: Write the proportion equation
658,433.05 : 908,711.36 = 371,971.60 : x - Step 2: Convert to fraction form
658,433.05/908,711.36 = 371,971.60/x - Step 3: Cross multiply
658,433.05x = 908,711.36 × 371,971.60 - Step 4: Simplify right side
658,433.05x = 338,014,818,517.38 - Step 5: Solve for x
x = 338,014,818,517.38/658,433.05 - Step 6: Final answer
x = 513,362.47
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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.