Finding the Fourth Proportional to 692,040.99, 1,038,211.94 and 212,270.70
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Solution
The fourth proportional to 692,040.99, 1,038,211.94 and 212,270.70 is: 318,452.20
Step by Step Solution
- Step 1: Write the proportion equation
692,040.99 : 1,038,211.94 = 212,270.70 : x - Step 2: Convert to fraction form
692,040.99/1,038,211.94 = 212,270.70/x - Step 3: Cross multiply
692,040.99x = 1,038,211.94 × 212,270.70 - Step 4: Simplify right side
692,040.99x = 220,381,975,252.16 - Step 5: Solve for x
x = 220,381,975,252.16/692,040.99 - Step 6: Final answer
x = 318,452.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.