Finding the Fourth Proportional to 1,398,297.12, 1,929,813.84 and 794,775.84
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Solution
The fourth proportional to 1,398,297.12, 1,929,813.84 and 794,775.84 is: 1,096,883.77
Step by Step Solution
- Step 1: Write the proportion equation
1,398,297.12 : 1,929,813.84 = 794,775.84 : x - Step 2: Convert to fraction form
1,398,297.12/1,929,813.84 = 794,775.84/x - Step 3: Cross multiply
1,398,297.12x = 1,929,813.84 × 794,775.84 - Step 4: Simplify right side
1,398,297.12x = 1,533,769,415,729.63 - Step 5: Solve for x
x = 1,533,769,415,729.63/1,398,297.12 - Step 6: Final answer
x = 1,096,883.77
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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.