Finding the Fourth Proportional to 763,136.40, 1,053,178.02 and 440,860.08
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Solution
The fourth proportional to 763,136.40, 1,053,178.02 and 440,860.08 is: 608,415.67
Step by Step Solution
- Step 1: Write the proportion equation
763,136.40 : 1,053,178.02 = 440,860.08 : x - Step 2: Convert to fraction form
763,136.40/1,053,178.02 = 440,860.08/x - Step 3: Cross multiply
763,136.40x = 1,053,178.02 × 440,860.08 - Step 4: Simplify right side
763,136.40x = 464,304,146,151.44 - Step 5: Solve for x
x = 464,304,146,151.44/763,136.40 - Step 6: Final answer
x = 608,415.67
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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.