Finding the Fourth Proportional to 680,948.10, 1,021,422.15 and 207,632.70
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Solution
The fourth proportional to 680,948.10, 1,021,422.15 and 207,632.70 is: 311,449.05
Step by Step Solution
- Step 1: Write the proportion equation
680,948.10 : 1,021,422.15 = 207,632.70 : x - Step 2: Convert to fraction form
680,948.10/1,021,422.15 = 207,632.70/x - Step 3: Cross multiply
680,948.10x = 1,021,422.15 × 207,632.70 - Step 4: Simplify right side
680,948.10x = 212,080,638,844.31 - Step 5: Solve for x
x = 212,080,638,844.31/680,948.10 - Step 6: Final answer
x = 311,449.05
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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.