Finding the Fourth Proportional to 2,405,689.90, 3,319,851.90 and 1,318,000.03
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Solution
The fourth proportional to 2,405,689.90, 3,319,851.90 and 1,318,000.03 is: 1,818,839.95
Step by Step Solution
- Step 1: Write the proportion equation
2,405,689.90 : 3,319,851.90 = 1,318,000.03 : x - Step 2: Convert to fraction form
2,405,689.90/3,319,851.90 = 1,318,000.03/x - Step 3: Cross multiply
2,405,689.90x = 3,319,851.90 × 1,318,000.03 - Step 4: Simplify right side
2,405,689.90x = 4,375,564,894,703.24 - Step 5: Solve for x
x = 4,375,564,894,703.24/2,405,689.90 - Step 6: Final answer
x = 1,818,839.95
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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.