Finding the Fourth Proportional to 1,269,108.90, 1,903,663.35 and 1,213,121.70
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Solution
The fourth proportional to 1,269,108.90, 1,903,663.35 and 1,213,121.70 is: 1,819,682.55
Step by Step Solution
- Step 1: Write the proportion equation
1,269,108.90 : 1,903,663.35 = 1,213,121.70 : x - Step 2: Convert to fraction form
1,269,108.90/1,903,663.35 = 1,213,121.70/x - Step 3: Cross multiply
1,269,108.90x = 1,903,663.35 × 1,213,121.70 - Step 4: Simplify right side
1,269,108.90x = 2,309,375,319,379.69 - Step 5: Solve for x
x = 2,309,375,319,379.69/1,269,108.90 - Step 6: Final answer
x = 1,819,682.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.