Finding the Fourth Proportional to 1,185,680.94, 1,636,240.68 and 641,815.07
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Solution
The fourth proportional to 1,185,680.94, 1,636,240.68 and 641,815.07 is: 885,705.32
Step by Step Solution
- Step 1: Write the proportion equation
1,185,680.94 : 1,636,240.68 = 641,815.07 : x - Step 2: Convert to fraction form
1,185,680.94/1,636,240.68 = 641,815.07/x - Step 3: Cross multiply
1,185,680.94x = 1,636,240.68 × 641,815.07 - Step 4: Simplify right side
1,185,680.94x = 1,050,163,918,389.84 - Step 5: Solve for x
x = 1,050,163,918,389.84/1,185,680.94 - Step 6: Final answer
x = 885,705.32
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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.