Finding the Fourth Proportional to 713,890.88, 1,070,491.86 and 414,446.84
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Solution
The fourth proportional to 713,890.88, 1,070,491.86 and 414,446.84 is: 621,470.28
Step by Step Solution
- Step 1: Write the proportion equation
713,890.88 : 1,070,491.86 = 414,446.84 : x - Step 2: Convert to fraction form
713,890.88/1,070,491.86 = 414,446.84/x - Step 3: Cross multiply
713,890.88x = 1,070,491.86 × 414,446.84 - Step 4: Simplify right side
713,890.88x = 443,661,966,550.49 - Step 5: Solve for x
x = 443,661,966,550.49/713,890.88 - Step 6: Final answer
x = 621,470.28
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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.