Finding the Fourth Proportional to 818,420.08, 1,129,028.53 and 635,882.80
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Solution
The fourth proportional to 818,420.08, 1,129,028.53 and 635,882.80 is: 877,214.33
Step by Step Solution
- Step 1: Write the proportion equation
818,420.08 : 1,129,028.53 = 635,882.80 : x - Step 2: Convert to fraction form
818,420.08/1,129,028.53 = 635,882.80/x - Step 3: Cross multiply
818,420.08x = 1,129,028.53 × 635,882.80 - Step 4: Simplify right side
818,420.08x = 717,929,822,936.28 - Step 5: Solve for x
x = 717,929,822,936.28/818,420.08 - Step 6: Final answer
x = 877,214.33
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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.