Finding the Fourth Proportional to 1,089,774.07, 1,634,722.52 and 331,640.20
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Solution
The fourth proportional to 1,089,774.07, 1,634,722.52 and 331,640.20 is: 497,478.99
Step by Step Solution
- Step 1: Write the proportion equation
1,089,774.07 : 1,634,722.52 = 331,640.20 : x - Step 2: Convert to fraction form
1,089,774.07/1,634,722.52 = 331,640.20/x - Step 3: Cross multiply
1,089,774.07x = 1,634,722.52 × 331,640.20 - Step 4: Simplify right side
1,089,774.07x = 542,139,703,477.30 - Step 5: Solve for x
x = 542,139,703,477.30/1,089,774.07 - Step 6: Final answer
x = 497,478.99
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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.