Finding the Fourth Proportional to 946,642.80, 1,306,374.18 and 538,775.70
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Solution
The fourth proportional to 946,642.80, 1,306,374.18 and 538,775.70 is: 743,514.52
Step by Step Solution
- Step 1: Write the proportion equation
946,642.80 : 1,306,374.18 = 538,775.70 : x - Step 2: Convert to fraction form
946,642.80/1,306,374.18 = 538,775.70/x - Step 3: Cross multiply
946,642.80x = 1,306,374.18 × 538,775.70 - Step 4: Simplify right side
946,642.80x = 703,842,663,291.43 - Step 5: Solve for x
x = 703,842,663,291.43/946,642.80 - Step 6: Final answer
x = 743,514.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.