Finding the Fourth Proportional to 1,398,029.67, 1,929,055.87 and 786,145.95
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Solution
The fourth proportional to 1,398,029.67, 1,929,055.87 and 786,145.95 is: 1,084,754.85
Step by Step Solution
- Step 1: Write the proportion equation
1,398,029.67 : 1,929,055.87 = 786,145.95 : x - Step 2: Convert to fraction form
1,398,029.67/1,929,055.87 = 786,145.95/x - Step 3: Cross multiply
1,398,029.67x = 1,929,055.87 × 786,145.95 - Step 4: Simplify right side
1,398,029.67x = 1,516,519,459,524.23 - Step 5: Solve for x
x = 1,516,519,459,524.23/1,398,029.67 - Step 6: Final answer
x = 1,084,754.85
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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.