Finding the Fourth Proportional to 885,351.63, 1,221,782.72 and 482,940.75
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Solution
The fourth proportional to 885,351.63, 1,221,782.72 and 482,940.75 is: 666,456.85
Step by Step Solution
- Step 1: Write the proportion equation
885,351.63 : 1,221,782.72 = 482,940.75 : x - Step 2: Convert to fraction form
885,351.63/1,221,782.72 = 482,940.75/x - Step 3: Cross multiply
885,351.63x = 1,221,782.72 × 482,940.75 - Step 4: Simplify right side
885,351.63x = 590,048,660,719.14 - Step 5: Solve for x
x = 590,048,660,719.14/885,351.63 - Step 6: Final answer
x = 666,456.85
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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.