Finding the Fourth Proportional to 1,431,037.06, 1,974,878.49 and 786,480.10
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Solution
The fourth proportional to 1,431,037.06, 1,974,878.49 and 786,480.10 is: 1,085,368.56
Step by Step Solution
- Step 1: Write the proportion equation
1,431,037.06 : 1,974,878.49 = 786,480.10 : x - Step 2: Convert to fraction form
1,431,037.06/1,974,878.49 = 786,480.10/x - Step 3: Cross multiply
1,431,037.06x = 1,974,878.49 × 786,480.10 - Step 4: Simplify right side
1,431,037.06x = 1,553,202,632,303.05 - Step 5: Solve for x
x = 1,553,202,632,303.05/1,431,037.06 - Step 6: Final answer
x = 1,085,368.56
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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.