Finding the Fourth Proportional to 1,379,485.10, 2,069,315.12 and 432,893.18
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Solution
The fourth proportional to 1,379,485.10, 2,069,315.12 and 432,893.18 is: 649,367.22
Step by Step Solution
- Step 1: Write the proportion equation
1,379,485.10 : 2,069,315.12 = 432,893.18 : x - Step 2: Convert to fraction form
1,379,485.10/2,069,315.12 = 432,893.18/x - Step 3: Cross multiply
1,379,485.10x = 2,069,315.12 × 432,893.18 - Step 4: Simplify right side
1,379,485.10x = 895,792,402,718.88 - Step 5: Solve for x
x = 895,792,402,718.88/1,379,485.10 - Step 6: Final answer
x = 649,367.22
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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.