Finding the Fourth Proportional to 1,441,643.37, 1,989,553.08 and 829,780.91
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Solution
The fourth proportional to 1,441,643.37, 1,989,553.08 and 829,780.91 is: 1,145,146.72
Step by Step Solution
- Step 1: Write the proportion equation
1,441,643.37 : 1,989,553.08 = 829,780.91 : x - Step 2: Convert to fraction form
1,441,643.37/1,989,553.08 = 829,780.91/x - Step 3: Cross multiply
1,441,643.37x = 1,989,553.08 × 829,780.91 - Step 4: Simplify right side
1,441,643.37x = 1,650,893,165,840.44 - Step 5: Solve for x
x = 1,650,893,165,840.44/1,441,643.37 - Step 6: Final answer
x = 1,145,146.72
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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.