Finding the Fourth Proportional to 790,753.20, 1,186,202.61 and 258,277.02
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Solution
The fourth proportional to 790,753.20, 1,186,202.61 and 258,277.02 is: 387,439.31
Step by Step Solution
- Step 1: Write the proportion equation
790,753.20 : 1,186,202.61 = 258,277.02 : x - Step 2: Convert to fraction form
790,753.20/1,186,202.61 = 258,277.02/x - Step 3: Cross multiply
790,753.20x = 1,186,202.61 × 258,277.02 - Step 4: Simplify right side
790,753.20x = 306,368,875,227.02 - Step 5: Solve for x
x = 306,368,875,227.02/790,753.20 - Step 6: Final answer
x = 387,439.31
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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.