Finding the Fourth Proportional to 1,256,739.74, 1,885,401.20 and 415,240.46
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Solution
The fourth proportional to 1,256,739.74, 1,885,401.20 and 415,240.46 is: 622,957.03
Step by Step Solution
- Step 1: Write the proportion equation
1,256,739.74 : 1,885,401.20 = 415,240.46 : x - Step 2: Convert to fraction form
1,256,739.74/1,885,401.20 = 415,240.46/x - Step 3: Cross multiply
1,256,739.74x = 1,885,401.20 × 415,240.46 - Step 4: Simplify right side
1,256,739.74x = 782,894,861,572.55 - Step 5: Solve for x
x = 782,894,861,572.55/1,256,739.74 - Step 6: Final answer
x = 622,957.03
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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.