Finding the Fourth Proportional to 717,068.30, 989,516.69 and 394,715.44
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Solution
The fourth proportional to 717,068.30, 989,516.69 and 394,715.44 is: 544,686.62
Step by Step Solution
- Step 1: Write the proportion equation
717,068.30 : 989,516.69 = 394,715.44 : x - Step 2: Convert to fraction form
717,068.30/989,516.69 = 394,715.44/x - Step 3: Cross multiply
717,068.30x = 989,516.69 × 394,715.44 - Step 4: Simplify right side
717,068.30x = 390,577,508,759.53 - Step 5: Solve for x
x = 390,577,508,759.53/717,068.30 - Step 6: Final answer
x = 544,686.62
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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.