Finding the Fourth Proportional to 644,176.13, 889,045.07 and 389,529.14
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Solution
The fourth proportional to 644,176.13, 889,045.07 and 389,529.14 is: 537,599.80
Step by Step Solution
- Step 1: Write the proportion equation
644,176.13 : 889,045.07 = 389,529.14 : x - Step 2: Convert to fraction form
644,176.13/889,045.07 = 389,529.14/x - Step 3: Cross multiply
644,176.13x = 889,045.07 × 389,529.14 - Step 4: Simplify right side
644,176.13x = 346,308,955,145.47 - Step 5: Solve for x
x = 346,308,955,145.47/644,176.13 - Step 6: Final answer
x = 537,599.80
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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.