Finding the Fourth Proportional to 656,136.05, 899,562.41 and 644,178.62
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Solution
The fourth proportional to 656,136.05, 899,562.41 and 644,178.62 is: 883,168.78
Step by Step Solution
- Step 1: Write the proportion equation
656,136.05 : 899,562.41 = 644,178.62 : x - Step 2: Convert to fraction form
656,136.05/899,562.41 = 644,178.62/x - Step 3: Cross multiply
656,136.05x = 899,562.41 × 644,178.62 - Step 4: Simplify right side
656,136.05x = 579,478,873,321.36 - Step 5: Solve for x
x = 579,478,873,321.36/656,136.05 - Step 6: Final answer
x = 883,168.78
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.