Finding the Fourth Proportional to 1,720,071.21, 2,373,713.67 and 935,138.76
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Solution
The fourth proportional to 1,720,071.21, 2,373,713.67 and 935,138.76 is: 1,290,499.86
Step by Step Solution
- Step 1: Write the proportion equation
1,720,071.21 : 2,373,713.67 = 935,138.76 : x - Step 2: Convert to fraction form
1,720,071.21/2,373,713.67 = 935,138.76/x - Step 3: Cross multiply
1,720,071.21x = 2,373,713.67 × 935,138.76 - Step 4: Simplify right side
1,720,071.21x = 2,219,751,657,958.85 - Step 5: Solve for x
x = 2,219,751,657,958.85/1,720,071.21 - Step 6: Final answer
x = 1,290,499.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.