Finding the Fourth Proportional to 1,246,553.43, 1,869,899.36 and 393,645.30
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Solution
The fourth proportional to 1,246,553.43, 1,869,899.36 and 393,645.30 is: 590,489.81
Step by Step Solution
- Step 1: Write the proportion equation
1,246,553.43 : 1,869,899.36 = 393,645.30 : x - Step 2: Convert to fraction form
1,246,553.43/1,869,899.36 = 393,645.30/x - Step 3: Cross multiply
1,246,553.43x = 1,869,899.36 × 393,645.30 - Step 4: Simplify right side
1,246,553.43x = 736,077,092,568.78 - Step 5: Solve for x
x = 736,077,092,568.78/1,246,553.43 - Step 6: Final answer
x = 590,489.81
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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.