Finding the Fourth Proportional to 611,491.87, 843,830.42 and 339,577.10
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Solution
The fourth proportional to 611,491.87, 843,830.42 and 339,577.10 is: 468,600.65
Step by Step Solution
- Step 1: Write the proportion equation
611,491.87 : 843,830.42 = 339,577.10 : x - Step 2: Convert to fraction form
611,491.87/843,830.42 = 339,577.10/x - Step 3: Cross multiply
611,491.87x = 843,830.42 × 339,577.10 - Step 4: Simplify right side
611,491.87x = 286,545,486,915.38 - Step 5: Solve for x
x = 286,545,486,915.38/611,491.87 - Step 6: Final answer
x = 468,600.65
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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.