Finding the Fourth Proportional to 830,648.18, 1,146,294.97 and 448,674.95
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Solution
The fourth proportional to 830,648.18, 1,146,294.97 and 448,674.95 is: 619,171.69
Step by Step Solution
- Step 1: Write the proportion equation
830,648.18 : 1,146,294.97 = 448,674.95 : x - Step 2: Convert to fraction form
830,648.18/1,146,294.97 = 448,674.95/x - Step 3: Cross multiply
830,648.18x = 1,146,294.97 × 448,674.95 - Step 4: Simplify right side
830,648.18x = 514,313,840,094.05 - Step 5: Solve for x
x = 514,313,840,094.05/830,648.18 - Step 6: Final answer
x = 619,171.69
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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.