Finding the Fourth Proportional to 527,309.16, 727,738.74 and 300,988.68
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Solution
The fourth proportional to 527,309.16, 727,738.74 and 300,988.68 is: 415,394.12
Step by Step Solution
- Step 1: Write the proportion equation
527,309.16 : 727,738.74 = 300,988.68 : x - Step 2: Convert to fraction form
527,309.16/727,738.74 = 300,988.68/x - Step 3: Cross multiply
527,309.16x = 727,738.74 × 300,988.68 - Step 4: Simplify right side
527,309.16x = 219,041,122,737.46 - Step 5: Solve for x
x = 219,041,122,737.46/527,309.16 - Step 6: Final answer
x = 415,394.12
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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.