Finding the Fourth Proportional to 753,129.96, 1,129,695.03 and 220,651.08
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Solution
The fourth proportional to 753,129.96, 1,129,695.03 and 220,651.08 is: 330,976.65
Step by Step Solution
- Step 1: Write the proportion equation
753,129.96 : 1,129,695.03 = 220,651.08 : x - Step 2: Convert to fraction form
753,129.96/1,129,695.03 = 220,651.08/x - Step 3: Cross multiply
753,129.96x = 1,129,695.03 × 220,651.08 - Step 4: Simplify right side
753,129.96x = 249,268,428,440.13 - Step 5: Solve for x
x = 249,268,428,440.13/753,129.96 - Step 6: Final answer
x = 330,976.65
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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.