Finding the Fourth Proportional to 707,788.18, 977,396.79 and 449,750.17
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Solution
The fourth proportional to 707,788.18, 977,396.79 and 449,750.17 is: 621,067.69
Step by Step Solution
- Step 1: Write the proportion equation
707,788.18 : 977,396.79 = 449,750.17 : x - Step 2: Convert to fraction form
707,788.18/977,396.79 = 449,750.17/x - Step 3: Cross multiply
707,788.18x = 977,396.79 × 449,750.17 - Step 4: Simplify right side
707,788.18x = 439,584,372,459.95 - Step 5: Solve for x
x = 439,584,372,459.95/707,788.18 - Step 6: Final answer
x = 621,067.69
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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.