Finding the Fourth Proportional to 629,905.80, 869,232.55 and 357,935.95
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Solution
The fourth proportional to 629,905.80, 869,232.55 and 357,935.95 is: 493,930.32
Step by Step Solution
- Step 1: Write the proportion equation
629,905.80 : 869,232.55 = 357,935.95 : x - Step 2: Convert to fraction form
629,905.80/869,232.55 = 357,935.95/x - Step 3: Cross multiply
629,905.80x = 869,232.55 × 357,935.95 - Step 4: Simplify right side
629,905.80x = 311,129,576,382.09 - Step 5: Solve for x
x = 311,129,576,382.09/629,905.80 - Step 6: Final answer
x = 493,930.32
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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.