Finding the Fourth Proportional to 424,438.60, 636,837.95 and 199,794.08
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Solution
The fourth proportional to 424,438.60, 636,837.95 and 199,794.08 is: 299,775.87
Step by Step Solution
- Step 1: Write the proportion equation
424,438.60 : 636,837.95 = 199,794.08 : x - Step 2: Convert to fraction form
424,438.60/636,837.95 = 199,794.08/x - Step 3: Cross multiply
424,438.60x = 636,837.95 × 199,794.08 - Step 4: Simplify right side
424,438.60x = 127,236,449,644.63 - Step 5: Solve for x
x = 127,236,449,644.63/424,438.60 - Step 6: Final answer
x = 299,775.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.