Finding the Fourth Proportional to 2,855,821.90, 4,279,705.04 and 1,577,005.09
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Solution
The fourth proportional to 2,855,821.90, 4,279,705.04 and 1,577,005.09 is: 2,363,283.45
Step by Step Solution
- Step 1: Write the proportion equation
2,855,821.90 : 4,279,705.04 = 1,577,005.09 : x - Step 2: Convert to fraction form
2,855,821.90/4,279,705.04 = 1,577,005.09/x - Step 3: Cross multiply
2,855,821.90x = 4,279,705.04 × 1,577,005.09 - Step 4: Simplify right side
2,855,821.90x = 6,749,116,631,778.65 - Step 5: Solve for x
x = 6,749,116,631,778.65/2,855,821.90 - Step 6: Final answer
x = 2,363,283.45
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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.