Finding the Fourth Proportional to 1,211,489.70, 1,817,234.55 and 739,097.70
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Solution
The fourth proportional to 1,211,489.70, 1,817,234.55 and 739,097.70 is: 1,108,646.55
Step by Step Solution
- Step 1: Write the proportion equation
1,211,489.70 : 1,817,234.55 = 739,097.70 : x - Step 2: Convert to fraction form
1,211,489.70/1,817,234.55 = 739,097.70/x - Step 3: Cross multiply
1,211,489.70x = 1,817,234.55 × 739,097.70 - Step 4: Simplify right side
1,211,489.70x = 1,343,113,876,265.53 - Step 5: Solve for x
x = 1,343,113,876,265.53/1,211,489.70 - Step 6: Final answer
x = 1,108,646.55
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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.