Finding the Fourth Proportional to 456,431.80, 684,647.70 and 124,007.80
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Solution
The fourth proportional to 456,431.80, 684,647.70 and 124,007.80 is: 186,011.70
Step by Step Solution
- Step 1: Write the proportion equation
456,431.80 : 684,647.70 = 124,007.80 : x - Step 2: Convert to fraction form
456,431.80/684,647.70 = 124,007.80/x - Step 3: Cross multiply
456,431.80x = 684,647.70 × 124,007.80 - Step 4: Simplify right side
456,431.80x = 84,901,655,052.06 - Step 5: Solve for x
x = 84,901,655,052.06/456,431.80 - Step 6: Final answer
x = 186,011.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.