Finding the Fourth Proportional to 658,432.05, 908,709.98 and 371,970.60
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Solution
The fourth proportional to 658,432.05, 908,709.98 and 371,970.60 is: 513,361.09
Step by Step Solution
- Step 1: Write the proportion equation
658,432.05 : 908,709.98 = 371,970.60 : x - Step 2: Convert to fraction form
658,432.05/908,709.98 = 371,970.60/x - Step 3: Cross multiply
658,432.05x = 908,709.98 × 371,970.60 - Step 4: Simplify right side
658,432.05x = 338,013,394,626.74 - Step 5: Solve for x
x = 338,013,394,626.74/658,432.05 - Step 6: Final answer
x = 513,361.09
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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.