Finding the Fourth Proportional to 1,631,641.32, 2,250,940.59 and 1,087,245.99
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Solution
The fourth proportional to 1,631,641.32, 2,250,940.59 and 1,087,245.99 is: 1,499,916.74
Step by Step Solution
- Step 1: Write the proportion equation
1,631,641.32 : 2,250,940.59 = 1,087,245.99 : x - Step 2: Convert to fraction form
1,631,641.32/2,250,940.59 = 1,087,245.99/x - Step 3: Cross multiply
1,631,641.32x = 2,250,940.59 × 1,087,245.99 - Step 4: Simplify right side
1,631,641.32x = 2,447,326,130,205.73 - Step 5: Solve for x
x = 2,447,326,130,205.73/1,631,641.32 - Step 6: Final answer
x = 1,499,916.74
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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.