Finding the Fourth Proportional to 1,177,297.75, 1,766,209.88 and 429,343.75
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Solution
The fourth proportional to 1,177,297.75, 1,766,209.88 and 429,343.75 is: 644,111.63
Step by Step Solution
- Step 1: Write the proportion equation
1,177,297.75 : 1,766,209.88 = 429,343.75 : x - Step 2: Convert to fraction form
1,177,297.75/1,766,209.88 = 429,343.75/x - Step 3: Cross multiply
1,177,297.75x = 1,766,209.88 × 429,343.75 - Step 4: Simplify right side
1,177,297.75x = 758,311,171,019.53 - Step 5: Solve for x
x = 758,311,171,019.53/1,177,297.75 - Step 6: Final answer
x = 644,111.63
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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.