Finding the Fourth Proportional to 399,438.26, 597,994.62 and 209,448.10
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Solution
The fourth proportional to 399,438.26, 597,994.62 and 209,448.10 is: 313,562.44
Step by Step Solution
- Step 1: Write the proportion equation
399,438.26 : 597,994.62 = 209,448.10 : x - Step 2: Convert to fraction form
399,438.26/597,994.62 = 209,448.10/x - Step 3: Cross multiply
399,438.26x = 597,994.62 × 209,448.10 - Step 4: Simplify right side
399,438.26x = 125,248,833,979.25 - Step 5: Solve for x
x = 125,248,833,979.25/399,438.26 - Step 6: Final answer
x = 313,562.44
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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.