Finding the Fourth Proportional to 1,440,865.05, 1,988,339.98 and 829,112.28
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Solution
The fourth proportional to 1,440,865.05, 1,988,339.98 and 829,112.28 is: 1,144,143.99
Step by Step Solution
- Step 1: Write the proportion equation
1,440,865.05 : 1,988,339.98 = 829,112.28 : x - Step 2: Convert to fraction form
1,440,865.05/1,988,339.98 = 829,112.28/x - Step 3: Cross multiply
1,440,865.05x = 1,988,339.98 × 829,112.28 - Step 4: Simplify right side
1,440,865.05x = 1,648,557,094,232.95 - Step 5: Solve for x
x = 1,648,557,094,232.95/1,440,865.05 - Step 6: Final answer
x = 1,144,143.99
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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.