Finding the Fourth Proportional to 1,851,479.70, 2,777,219.55 and 1,478,231.70
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Solution
The fourth proportional to 1,851,479.70, 2,777,219.55 and 1,478,231.70 is: 2,217,347.55
Step by Step Solution
- Step 1: Write the proportion equation
1,851,479.70 : 2,777,219.55 = 1,478,231.70 : x - Step 2: Convert to fraction form
1,851,479.70/2,777,219.55 = 1,478,231.70/x - Step 3: Cross multiply
1,851,479.70x = 2,777,219.55 × 1,478,231.70 - Step 4: Simplify right side
1,851,479.70x = 4,105,373,976,669.73 - Step 5: Solve for x
x = 4,105,373,976,669.73/1,851,479.70 - Step 6: Final answer
x = 2,217,347.55
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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.