Finding the Fourth Proportional to 680,980.75, 1,021,468.37 and 207,664.74
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Solution
The fourth proportional to 680,980.75, 1,021,468.37 and 207,664.74 is: 311,496.27
Step by Step Solution
- Step 1: Write the proportion equation
680,980.75 : 1,021,468.37 = 207,664.74 : x - Step 2: Convert to fraction form
680,980.75/1,021,468.37 = 207,664.74/x - Step 3: Cross multiply
680,980.75x = 1,021,468.37 × 207,664.74 - Step 4: Simplify right side
680,980.75x = 212,122,963,474.27 - Step 5: Solve for x
x = 212,122,963,474.27/680,980.75 - Step 6: Final answer
x = 311,496.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.