Finding the Fourth Proportional to 712,655.18, 983,463.84 and 385,968.21
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Solution
The fourth proportional to 712,655.18, 983,463.84 and 385,968.21 is: 532,635.96
Step by Step Solution
- Step 1: Write the proportion equation
712,655.18 : 983,463.84 = 385,968.21 : x - Step 2: Convert to fraction form
712,655.18/983,463.84 = 385,968.21/x - Step 3: Cross multiply
712,655.18x = 983,463.84 × 385,968.21 - Step 4: Simplify right side
712,655.18x = 379,585,777,934.40 - Step 5: Solve for x
x = 379,585,777,934.40/712,655.18 - Step 6: Final answer
x = 532,635.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.