Finding the Fourth Proportional to 1,292,023.50, 1,782,992.43 and 719,198.99
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Solution
The fourth proportional to 1,292,023.50, 1,782,992.43 and 719,198.99 is: 992,494.61
Step by Step Solution
- Step 1: Write the proportion equation
1,292,023.50 : 1,782,992.43 = 719,198.99 : x - Step 2: Convert to fraction form
1,292,023.50/1,782,992.43 = 719,198.99/x - Step 3: Cross multiply
1,292,023.50x = 1,782,992.43 × 719,198.99 - Step 4: Simplify right side
1,292,023.50x = 1,282,326,359,291.13 - Step 5: Solve for x
x = 1,282,326,359,291.13/1,292,023.50 - Step 6: Final answer
x = 992,494.61
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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.