Finding the Fourth Proportional to 998,442.20, 1,497,857.70 and 429,822.20
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Solution
The fourth proportional to 998,442.20, 1,497,857.70 and 429,822.20 is: 644,816.99
Step by Step Solution
- Step 1: Write the proportion equation
998,442.20 : 1,497,857.70 = 429,822.20 : x - Step 2: Convert to fraction form
998,442.20/1,497,857.70 = 429,822.20/x - Step 3: Cross multiply
998,442.20x = 1,497,857.70 × 429,822.20 - Step 4: Simplify right side
998,442.20x = 643,812,491,900.94 - Step 5: Solve for x
x = 643,812,491,900.94/998,442.20 - Step 6: Final answer
x = 644,816.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.