Finding the Fourth Proportional to 869,135.70, 1,303,703.55 and 764,073.30
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Solution
The fourth proportional to 869,135.70, 1,303,703.55 and 764,073.30 is: 1,146,109.95
Step by Step Solution
- Step 1: Write the proportion equation
869,135.70 : 1,303,703.55 = 764,073.30 : x - Step 2: Convert to fraction form
869,135.70/1,303,703.55 = 764,073.30/x - Step 3: Cross multiply
869,135.70x = 1,303,703.55 × 764,073.30 - Step 4: Simplify right side
869,135.70x = 996,125,073,670.22 - Step 5: Solve for x
x = 996,125,073,670.22/869,135.70 - Step 6: Final answer
x = 1,146,109.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.