Finding the Fourth Proportional to 1,379,484.10, 2,069,313.62 and 432,892.18
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Solution
The fourth proportional to 1,379,484.10, 2,069,313.62 and 432,892.18 is: 649,365.72
Step by Step Solution
- Step 1: Write the proportion equation
1,379,484.10 : 2,069,313.62 = 432,892.18 : x - Step 2: Convert to fraction form
1,379,484.10/2,069,313.62 = 432,892.18/x - Step 3: Cross multiply
1,379,484.10x = 2,069,313.62 × 432,892.18 - Step 4: Simplify right side
1,379,484.10x = 895,789,684,065.49 - Step 5: Solve for x
x = 895,789,684,065.49/1,379,484.10 - Step 6: Final answer
x = 649,365.72
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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.