Finding the Fourth Proportional to 748,830.70, 1,123,246.05 and 328,926.70
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Solution
The fourth proportional to 748,830.70, 1,123,246.05 and 328,926.70 is: 493,390.05
Step by Step Solution
- Step 1: Write the proportion equation
748,830.70 : 1,123,246.05 = 328,926.70 : x - Step 2: Convert to fraction form
748,830.70/1,123,246.05 = 328,926.70/x - Step 3: Cross multiply
748,830.70x = 1,123,246.05 × 328,926.70 - Step 4: Simplify right side
748,830.70x = 369,465,616,514.54 - Step 5: Solve for x
x = 369,465,616,514.54/748,830.70 - Step 6: Final answer
x = 493,390.05
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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.