Finding the Fourth Proportional to 972,977.48, 1,459,471.43 and 638,138.49
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Solution
The fourth proportional to 972,977.48, 1,459,471.43 and 638,138.49 is: 957,211.15
Step by Step Solution
- Step 1: Write the proportion equation
972,977.48 : 1,459,471.43 = 638,138.49 : x - Step 2: Convert to fraction form
972,977.48/1,459,471.43 = 638,138.49/x - Step 3: Cross multiply
972,977.48x = 1,459,471.43 × 638,138.49 - Step 4: Simplify right side
972,977.48x = 931,344,891,347.65 - Step 5: Solve for x
x = 931,344,891,347.65/972,977.48 - Step 6: Final answer
x = 957,211.15
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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.