Finding the Fourth Proportional to 1,330,487.52, 1,836,072.36 and 718,639.98
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Solution
The fourth proportional to 1,330,487.52, 1,836,072.36 and 718,639.98 is: 991,722.95
Step by Step Solution
- Step 1: Write the proportion equation
1,330,487.52 : 1,836,072.36 = 718,639.98 : x - Step 2: Convert to fraction form
1,330,487.52/1,836,072.36 = 718,639.98/x - Step 3: Cross multiply
1,330,487.52x = 1,836,072.36 × 718,639.98 - Step 4: Simplify right side
1,330,487.52x = 1,319,475,004,068.95 - Step 5: Solve for x
x = 1,319,475,004,068.95/1,330,487.52 - Step 6: Final answer
x = 991,722.95
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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.