Finding the Fourth Proportional to 752,415.11, 1,128,600.80 and 219,948.65
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Solution
The fourth proportional to 752,415.11, 1,128,600.80 and 219,948.65 is: 329,916.58
Step by Step Solution
- Step 1: Write the proportion equation
752,415.11 : 1,128,600.80 = 219,948.65 : x - Step 2: Convert to fraction form
752,415.11/1,128,600.80 = 219,948.65/x - Step 3: Cross multiply
752,415.11x = 1,128,600.80 × 219,948.65 - Step 4: Simplify right side
752,415.11x = 248,234,221,249.18 - Step 5: Solve for x
x = 248,234,221,249.18/752,415.11 - Step 6: Final answer
x = 329,916.58
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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.