Finding the Fourth Proportional to 914,509.19, 1,371,432.44 and 307,115.78
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Solution
The fourth proportional to 914,509.19, 1,371,432.44 and 307,115.78 is: 460,562.39
Step by Step Solution
- Step 1: Write the proportion equation
914,509.19 : 1,371,432.44 = 307,115.78 : x - Step 2: Convert to fraction form
914,509.19/1,371,432.44 = 307,115.78/x - Step 3: Cross multiply
914,509.19x = 1,371,432.44 × 307,115.78 - Step 4: Simplify right side
914,509.19x = 421,188,542,581.40 - Step 5: Solve for x
x = 421,188,542,581.40/914,509.19 - Step 6: Final answer
x = 460,562.39
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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.