Finding the Fourth Proportional to 812,126.24, 1,218,438.52 and 363,224.72
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Solution
The fourth proportional to 812,126.24, 1,218,438.52 and 363,224.72 is: 544,948.52
Step by Step Solution
- Step 1: Write the proportion equation
812,126.24 : 1,218,438.52 = 363,224.72 : x - Step 2: Convert to fraction form
812,126.24/1,218,438.52 = 363,224.72/x - Step 3: Cross multiply
812,126.24x = 1,218,438.52 × 363,224.72 - Step 4: Simplify right side
812,126.24x = 442,566,990,264.21 - Step 5: Solve for x
x = 442,566,990,264.21/812,126.24 - Step 6: Final answer
x = 544,948.52
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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.