Finding the Fourth Proportional to 4,285,021.74, 6,423,013.59 and 1,405,636.62
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Solution
The fourth proportional to 4,285,021.74, 6,423,013.59 and 1,405,636.62 is: 2,106,972.53
Step by Step Solution
- Step 1: Write the proportion equation
4,285,021.74 : 6,423,013.59 = 1,405,636.62 : x - Step 2: Convert to fraction form
4,285,021.74/6,423,013.59 = 1,405,636.62/x - Step 3: Cross multiply
4,285,021.74x = 6,423,013.59 × 1,405,636.62 - Step 4: Simplify right side
4,285,021.74x = 9,028,423,112,861.67 - Step 5: Solve for x
x = 9,028,423,112,861.67/4,285,021.74 - Step 6: Final answer
x = 2,106,972.53
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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.