Finding the Fourth Proportional to 1,070,806.88, 1,605,697.76 and 621,651.74
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Solution
The fourth proportional to 1,070,806.88, 1,605,697.76 and 621,651.74 is: 932,180.05
Step by Step Solution
- Step 1: Write the proportion equation
1,070,806.88 : 1,605,697.76 = 621,651.74 : x - Step 2: Convert to fraction form
1,070,806.88/1,605,697.76 = 621,651.74/x - Step 3: Cross multiply
1,070,806.88x = 1,605,697.76 × 621,651.74 - Step 4: Simplify right side
1,070,806.88x = 998,184,806,418.10 - Step 5: Solve for x
x = 998,184,806,418.10/1,070,806.88 - Step 6: Final answer
x = 932,180.05
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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.