Finding the Fourth Proportional to 580,665.72, 870,015.45 and 355,555.99
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Solution
The fourth proportional to 580,665.72, 870,015.45 and 355,555.99 is: 532,731.99
Step by Step Solution
- Step 1: Write the proportion equation
580,665.72 : 870,015.45 = 355,555.99 : x - Step 2: Convert to fraction form
580,665.72/870,015.45 = 355,555.99/x - Step 3: Cross multiply
580,665.72x = 870,015.45 × 355,555.99 - Step 4: Simplify right side
580,665.72x = 309,339,204,640.05 - Step 5: Solve for x
x = 309,339,204,640.05/580,665.72 - Step 6: Final answer
x = 532,731.99
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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.