Finding the Fourth Proportional to 873,620.26, 1,205,396.50 and 491,507.62
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Solution
The fourth proportional to 873,620.26, 1,205,396.50 and 491,507.62 is: 678,168.30
Step by Step Solution
- Step 1: Write the proportion equation
873,620.26 : 1,205,396.50 = 491,507.62 : x - Step 2: Convert to fraction form
873,620.26/1,205,396.50 = 491,507.62/x - Step 3: Cross multiply
873,620.26x = 1,205,396.50 × 491,507.62 - Step 4: Simplify right side
873,620.26x = 592,461,564,871.33 - Step 5: Solve for x
x = 592,461,564,871.33/873,620.26 - Step 6: Final answer
x = 678,168.30
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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.