Finding the Fourth Proportional to 766,148.42, 1,148,838.15 and 446,403.62
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Solution
The fourth proportional to 766,148.42, 1,148,838.15 and 446,403.62 is: 669,381.41
Step by Step Solution
- Step 1: Write the proportion equation
766,148.42 : 1,148,838.15 = 446,403.62 : x - Step 2: Convert to fraction form
766,148.42/1,148,838.15 = 446,403.62/x - Step 3: Cross multiply
766,148.42x = 1,148,838.15 × 446,403.62 - Step 4: Simplify right side
766,148.42x = 512,845,508,954.10 - Step 5: Solve for x
x = 512,845,508,954.10/766,148.42 - Step 6: Final answer
x = 669,381.41
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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.