Finding the Fourth Proportional to 1,406,434.74, 1,940,839.84 and 825,648.53
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Solution
The fourth proportional to 1,406,434.74, 1,940,839.84 and 825,648.53 is: 1,139,371.43
Step by Step Solution
- Step 1: Write the proportion equation
1,406,434.74 : 1,940,839.84 = 825,648.53 : x - Step 2: Convert to fraction form
1,406,434.74/1,940,839.84 = 825,648.53/x - Step 3: Cross multiply
1,406,434.74x = 1,940,839.84 × 825,648.53 - Step 4: Simplify right side
1,406,434.74x = 1,602,451,556,733.19 - Step 5: Solve for x
x = 1,602,451,556,733.19/1,406,434.74 - Step 6: Final answer
x = 1,139,371.43
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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.