Finding the Fourth Proportional to 1,489,765.60, 2,235,814.80 and 691,146.10
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Solution
The fourth proportional to 1,489,765.60, 2,235,814.80 and 691,146.10 is: 1,037,260.28
Step by Step Solution
- Step 1: Write the proportion equation
1,489,765.60 : 2,235,814.80 = 691,146.10 : x - Step 2: Convert to fraction form
1,489,765.60/2,235,814.80 = 691,146.10/x - Step 3: Cross multiply
1,489,765.60x = 2,235,814.80 × 691,146.10 - Step 4: Simplify right side
1,489,765.60x = 1,545,274,679,342.28 - Step 5: Solve for x
x = 1,545,274,679,342.28/1,489,765.60 - Step 6: Final answer
x = 1,037,260.28
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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.