Finding the Fourth Proportional to 656,901.21, 906,523.93 and 355,095.21
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Solution
The fourth proportional to 656,901.21, 906,523.93 and 355,095.21 is: 490,031.53
Step by Step Solution
- Step 1: Write the proportion equation
656,901.21 : 906,523.93 = 355,095.21 : x - Step 2: Convert to fraction form
656,901.21/906,523.93 = 355,095.21/x - Step 3: Cross multiply
656,901.21x = 906,523.93 × 355,095.21 - Step 4: Simplify right side
656,901.21x = 321,902,305,293.38 - Step 5: Solve for x
x = 321,902,305,293.38/656,901.21 - Step 6: Final answer
x = 490,031.53
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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.