Finding the Fourth Proportional to 619,644.84, 854,426.87 and 428,326.08
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Solution
The fourth proportional to 619,644.84, 854,426.87 and 428,326.08 is: 590,617.86
Step by Step Solution
- Step 1: Write the proportion equation
619,644.84 : 854,426.87 = 428,326.08 : x - Step 2: Convert to fraction form
619,644.84/854,426.87 = 428,326.08/x - Step 3: Cross multiply
619,644.84x = 854,426.87 × 428,326.08 - Step 4: Simplify right side
619,644.84x = 365,973,309,732.14 - Step 5: Solve for x
x = 365,973,309,732.14/619,644.84 - Step 6: Final answer
x = 590,617.86
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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.