Finding the Fourth Proportional to 993,974.40, 1,370,735.04 and 668,023.68
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Solution
The fourth proportional to 993,974.40, 1,370,735.04 and 668,023.68 is: 921,234.46
Step by Step Solution
- Step 1: Write the proportion equation
993,974.40 : 1,370,735.04 = 668,023.68 : x - Step 2: Convert to fraction form
993,974.40/1,370,735.04 = 668,023.68/x - Step 3: Cross multiply
993,974.40x = 1,370,735.04 × 668,023.68 - Step 4: Simplify right side
993,974.40x = 915,683,465,725.75 - Step 5: Solve for x
x = 915,683,465,725.75/993,974.40 - Step 6: Final answer
x = 921,234.46
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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.