Finding the Fourth Proportional to 1,113,231.60, 1,537,350.84 and 769,947.12
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Solution
The fourth proportional to 1,113,231.60, 1,537,350.84 and 769,947.12 is: 1,063,281.76
Step by Step Solution
- Step 1: Write the proportion equation
1,113,231.60 : 1,537,350.84 = 769,947.12 : x - Step 2: Convert to fraction form
1,113,231.60/1,537,350.84 = 769,947.12/x - Step 3: Cross multiply
1,113,231.60x = 1,537,350.84 × 769,947.12 - Step 4: Simplify right side
1,113,231.60x = 1,183,678,851,687.58 - Step 5: Solve for x
x = 1,183,678,851,687.58/1,113,231.60 - Step 6: Final answer
x = 1,063,281.76
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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.