Finding the Fourth Proportional to 755,047.84, 1,041,965.31 and 415,516.09
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Solution
The fourth proportional to 755,047.84, 1,041,965.31 and 415,516.09 is: 573,411.81
Step by Step Solution
- Step 1: Write the proportion equation
755,047.84 : 1,041,965.31 = 415,516.09 : x - Step 2: Convert to fraction form
755,047.84/1,041,965.31 = 415,516.09/x - Step 3: Cross multiply
755,047.84x = 1,041,965.31 × 415,516.09 - Step 4: Simplify right side
755,047.84x = 432,953,351,526.84 - Step 5: Solve for x
x = 432,953,351,526.84/755,047.84 - Step 6: Final answer
x = 573,411.81
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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.