Finding the Fourth Proportional to 1,313,581.56, 1,970,638.20 and 555,421.79
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Solution
The fourth proportional to 1,313,581.56, 1,970,638.20 and 555,421.79 is: 833,245.09
Step by Step Solution
- Step 1: Write the proportion equation
1,313,581.56 : 1,970,638.20 = 555,421.79 : x - Step 2: Convert to fraction form
1,313,581.56/1,970,638.20 = 555,421.79/x - Step 3: Cross multiply
1,313,581.56x = 1,970,638.20 × 555,421.79 - Step 4: Simplify right side
1,313,581.56x = 1,094,535,386,633.19 - Step 5: Solve for x
x = 1,094,535,386,633.19/1,313,581.56 - Step 6: Final answer
x = 833,245.09
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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.