Finding the Fourth Proportional to 1,152,553.02, 1,590,731.36 and 687,436.71
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Solution
The fourth proportional to 1,152,553.02, 1,590,731.36 and 687,436.71 is: 948,786.84
Step by Step Solution
- Step 1: Write the proportion equation
1,152,553.02 : 1,590,731.36 = 687,436.71 : x - Step 2: Convert to fraction form
1,152,553.02/1,590,731.36 = 687,436.71/x - Step 3: Cross multiply
1,152,553.02x = 1,590,731.36 × 687,436.71 - Step 4: Simplify right side
1,152,553.02x = 1,093,527,132,612.23 - Step 5: Solve for x
x = 1,093,527,132,612.23/1,152,553.02 - Step 6: Final answer
x = 948,786.84
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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.