Finding the Fourth Proportional to 878,586.24, 1,317,379.76 and 345,818.40
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Solution
The fourth proportional to 878,586.24, 1,317,379.76 and 345,818.40 is: 518,530.95
Step by Step Solution
- Step 1: Write the proportion equation
878,586.24 : 1,317,379.76 = 345,818.40 : x - Step 2: Convert to fraction form
878,586.24/1,317,379.76 = 345,818.40/x - Step 3: Cross multiply
878,586.24x = 1,317,379.76 × 345,818.40 - Step 4: Simplify right side
878,586.24x = 455,574,160,795.58 - Step 5: Solve for x
x = 455,574,160,795.58/878,586.24 - Step 6: Final answer
x = 518,530.95
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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.