Finding the Fourth Proportional to 991,764.80, 1,489,202.40 and 571,860.80
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Solution
The fourth proportional to 991,764.80, 1,489,202.40 and 571,860.80 is: 858,687.94
Step by Step Solution
- Step 1: Write the proportion equation
991,764.80 : 1,489,202.40 = 571,860.80 : x - Step 2: Convert to fraction form
991,764.80/1,489,202.40 = 571,860.80/x - Step 3: Cross multiply
991,764.80x = 1,489,202.40 × 571,860.80 - Step 4: Simplify right side
991,764.80x = 851,616,475,825.92 - Step 5: Solve for x
x = 851,616,475,825.92/991,764.80 - Step 6: Final answer
x = 858,687.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.