Finding the Fourth Proportional to 1,218,695.88, 1,681,779.76 and 674,819.99
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Solution
The fourth proportional to 1,218,695.88, 1,681,779.76 and 674,819.99 is: 931,240.20
Step by Step Solution
- Step 1: Write the proportion equation
1,218,695.88 : 1,681,779.76 = 674,819.99 : x - Step 2: Convert to fraction form
1,218,695.88/1,681,779.76 = 674,819.99/x - Step 3: Cross multiply
1,218,695.88x = 1,681,779.76 × 674,819.99 - Step 4: Simplify right side
1,218,695.88x = 1,134,898,596,101.98 - Step 5: Solve for x
x = 1,134,898,596,101.98/1,218,695.88 - Step 6: Final answer
x = 931,240.20
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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.