Finding the Fourth Proportional to 3,214,990.53, 4,440,369.12 and 2,117,328.72
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Solution
The fourth proportional to 3,214,990.53, 4,440,369.12 and 2,117,328.72 is: 2,924,338.65
Step by Step Solution
- Step 1: Write the proportion equation
3,214,990.53 : 4,440,369.12 = 2,117,328.72 : x - Step 2: Convert to fraction form
3,214,990.53/4,440,369.12 = 2,117,328.72/x - Step 3: Cross multiply
3,214,990.53x = 4,440,369.12 × 2,117,328.72 - Step 4: Simplify right side
3,214,990.53x = 9,401,721,065,177.13 - Step 5: Solve for x
x = 9,401,721,065,177.13/3,214,990.53 - Step 6: Final answer
x = 2,924,338.65
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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.