Finding the Fourth Proportional to 420,694.99, 580,556.79 and 229,707.02
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Solution
The fourth proportional to 420,694.99, 580,556.79 and 229,707.02 is: 316,994.43
Step by Step Solution
- Step 1: Write the proportion equation
420,694.99 : 580,556.79 = 229,707.02 : x - Step 2: Convert to fraction form
420,694.99/580,556.79 = 229,707.02/x - Step 3: Cross multiply
420,694.99x = 580,556.79 × 229,707.02 - Step 4: Simplify right side
420,694.99x = 133,357,967,268.88 - Step 5: Solve for x
x = 133,357,967,268.88/420,694.99 - Step 6: Final answer
x = 316,994.43
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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.