Finding the Fourth Proportional to 814,218.70, 1,221,328.05 and 578,022.70
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Solution
The fourth proportional to 814,218.70, 1,221,328.05 and 578,022.70 is: 867,034.05
Step by Step Solution
- Step 1: Write the proportion equation
814,218.70 : 1,221,328.05 = 578,022.70 : x - Step 2: Convert to fraction form
814,218.70/1,221,328.05 = 578,022.70/x - Step 3: Cross multiply
814,218.70x = 1,221,328.05 × 578,022.70 - Step 4: Simplify right side
814,218.70x = 705,955,337,046.74 - Step 5: Solve for x
x = 705,955,337,046.74/814,218.70 - Step 6: Final answer
x = 867,034.05
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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.