Finding the Fourth Proportional to 420,694.74, 580,556.44 and 229,706.76
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Solution
The fourth proportional to 420,694.74, 580,556.44 and 229,706.76 is: 316,994.08
Step by Step Solution
- Step 1: Write the proportion equation
420,694.74 : 580,556.44 = 229,706.76 : x - Step 2: Convert to fraction form
420,694.74/580,556.44 = 229,706.76/x - Step 3: Cross multiply
420,694.74x = 580,556.44 × 229,706.76 - Step 4: Simplify right side
420,694.74x = 133,357,740,855.19 - Step 5: Solve for x
x = 133,357,740,855.19/420,694.74 - Step 6: Final answer
x = 316,994.08
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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.