Finding the Fourth Proportional to 823,478.14, 1,235,316.84 and 290,890.18
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Solution
The fourth proportional to 823,478.14, 1,235,316.84 and 290,890.18 is: 436,370.46
Step by Step Solution
- Step 1: Write the proportion equation
823,478.14 : 1,235,316.84 = 290,890.18 : x - Step 2: Convert to fraction form
823,478.14/1,235,316.84 = 290,890.18/x - Step 3: Cross multiply
823,478.14x = 1,235,316.84 × 290,890.18 - Step 4: Simplify right side
823,478.14x = 359,341,537,944.63 - Step 5: Solve for x
x = 359,341,537,944.63/823,478.14 - Step 6: Final answer
x = 436,370.46
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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.