Finding the Fourth Proportional to 1,037,120.86, 1,431,320.79 and 629,326.02
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Solution
The fourth proportional to 1,037,120.86, 1,431,320.79 and 629,326.02 is: 868,526.95
Step by Step Solution
- Step 1: Write the proportion equation
1,037,120.86 : 1,431,320.79 = 629,326.02 : x - Step 2: Convert to fraction form
1,037,120.86/1,431,320.79 = 629,326.02/x - Step 3: Cross multiply
1,037,120.86x = 1,431,320.79 × 629,326.02 - Step 4: Simplify right side
1,037,120.86x = 900,767,416,113.96 - Step 5: Solve for x
x = 900,767,416,113.96/1,037,120.86 - Step 6: Final answer
x = 868,526.95
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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.