Finding the Fourth Proportional to 680,885.68, 1,021,328.51 and 207,566.94
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Solution
The fourth proportional to 680,885.68, 1,021,328.51 and 207,566.94 is: 311,350.41
Step by Step Solution
- Step 1: Write the proportion equation
680,885.68 : 1,021,328.51 = 207,566.94 : x - Step 2: Convert to fraction form
680,885.68/1,021,328.51 = 207,566.94/x - Step 3: Cross multiply
680,885.68x = 1,021,328.51 × 207,566.94 - Step 4: Simplify right side
680,885.68x = 211,994,033,555.46 - Step 5: Solve for x
x = 211,994,033,555.46/680,885.68 - Step 6: Final answer
x = 311,350.41
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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.