Finding the Fourth Proportional to 1,053,579.47, 1,453,783.25 and 639,900.99
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Solution
The fourth proportional to 1,053,579.47, 1,453,783.25 and 639,900.99 is: 882,968.37
Step by Step Solution
- Step 1: Write the proportion equation
1,053,579.47 : 1,453,783.25 = 639,900.99 : x - Step 2: Convert to fraction form
1,053,579.47/1,453,783.25 = 639,900.99/x - Step 3: Cross multiply
1,053,579.47x = 1,453,783.25 × 639,900.99 - Step 4: Simplify right side
1,053,579.47x = 930,277,342,520.17 - Step 5: Solve for x
x = 930,277,342,520.17/1,053,579.47 - Step 6: Final answer
x = 882,968.37
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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.