Finding the Fourth Proportional to 1,423,796.30, 1,964,839.68 and 779,216.12
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Solution
The fourth proportional to 1,423,796.30, 1,964,839.68 and 779,216.12 is: 1,075,318.68
Step by Step Solution
- Step 1: Write the proportion equation
1,423,796.30 : 1,964,839.68 = 779,216.12 : x - Step 2: Convert to fraction form
1,423,796.30/1,964,839.68 = 779,216.12/x - Step 3: Cross multiply
1,423,796.30x = 1,964,839.68 × 779,216.12 - Step 4: Simplify right side
1,423,796.30x = 1,531,034,751,871.64 - Step 5: Solve for x
x = 1,531,034,751,871.64/1,423,796.30 - Step 6: Final answer
x = 1,075,318.68
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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.