Finding the Fourth Proportional to 630,414.62, 869,936.72 and 358,548.65
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Solution
The fourth proportional to 630,414.62, 869,936.72 and 358,548.65 is: 494,776.97
Step by Step Solution
- Step 1: Write the proportion equation
630,414.62 : 869,936.72 = 358,548.65 : x - Step 2: Convert to fraction form
630,414.62/869,936.72 = 358,548.65/x - Step 3: Cross multiply
630,414.62x = 869,936.72 × 358,548.65 - Step 4: Simplify right side
630,414.62x = 311,914,630,399.00 - Step 5: Solve for x
x = 311,914,630,399.00/630,414.62 - Step 6: Final answer
x = 494,776.97
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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.