Finding the Fourth Proportional to 985,973.84, 1,478,960.82 and 321,125.84
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Solution
The fourth proportional to 985,973.84, 1,478,960.82 and 321,125.84 is: 481,688.78
Step by Step Solution
- Step 1: Write the proportion equation
985,973.84 : 1,478,960.82 = 321,125.84 : x - Step 2: Convert to fraction form
985,973.84/1,478,960.82 = 321,125.84/x - Step 3: Cross multiply
985,973.84x = 1,478,960.82 × 321,125.84 - Step 4: Simplify right side
985,973.84x = 474,932,535,649.59 - Step 5: Solve for x
x = 474,932,535,649.59/985,973.84 - Step 6: Final answer
x = 481,688.78
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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.