Finding the Fourth Proportional to 1,288,451.99, 1,930,996.73 and 719,810.12
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Solution
The fourth proportional to 1,288,451.99, 1,930,996.73 and 719,810.12 is: 1,078,775.93
Step by Step Solution
- Step 1: Write the proportion equation
1,288,451.99 : 1,930,996.73 = 719,810.12 : x - Step 2: Convert to fraction form
1,288,451.99/1,930,996.73 = 719,810.12/x - Step 3: Cross multiply
1,288,451.99x = 1,930,996.73 × 719,810.12 - Step 4: Simplify right side
1,288,451.99x = 1,389,950,992,768.40 - Step 5: Solve for x
x = 1,389,950,992,768.40/1,288,451.99 - Step 6: Final answer
x = 1,078,775.93
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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.