Finding the Fourth Proportional to 987,138.24, 1,362,244.62 and 534,426
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Solution
The fourth proportional to 987,138.24, 1,362,244.62 and 534,426 is: 737,504.55
Step by Step Solution
- Step 1: Write the proportion equation
987,138.24 : 1,362,244.62 = 534,426 : x - Step 2: Convert to fraction form
987,138.24/1,362,244.62 = 534,426/x - Step 3: Cross multiply
987,138.24x = 1,362,244.62 × 534,426 - Step 4: Simplify right side
987,138.24x = 728,018,943,288.12 - Step 5: Solve for x
x = 728,018,943,288.12/987,138.24 - Step 6: Final answer
x = 737,504.55
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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.