Finding the Fourth Proportional to 752,599.20, 1,128,990.96 and 331,980.96
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Solution
The fourth proportional to 752,599.20, 1,128,990.96 and 331,980.96 is: 498,012.09
Step by Step Solution
- Step 1: Write the proportion equation
752,599.20 : 1,128,990.96 = 331,980.96 : x - Step 2: Convert to fraction form
752,599.20/1,128,990.96 = 331,980.96/x - Step 3: Cross multiply
752,599.20x = 1,128,990.96 × 331,980.96 - Step 4: Simplify right side
752,599.20x = 374,803,502,732.12 - Step 5: Solve for x
x = 374,803,502,732.12/752,599.20 - Step 6: Final answer
x = 498,012.09
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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.