Finding the Fourth Proportional to 1,873,918.13, 2,811,996.68 and 1,721,459.61
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Solution
The fourth proportional to 1,873,918.13, 2,811,996.68 and 1,721,459.61 is: 2,583,217.82
Step by Step Solution
- Step 1: Write the proportion equation
1,873,918.13 : 2,811,996.68 = 1,721,459.61 : x - Step 2: Convert to fraction form
1,873,918.13/2,811,996.68 = 1,721,459.61/x - Step 3: Cross multiply
1,873,918.13x = 2,811,996.68 × 1,721,459.61 - Step 4: Simplify right side
1,873,918.13x = 4,840,738,699,466.80 - Step 5: Solve for x
x = 4,840,738,699,466.80/1,873,918.13 - Step 6: Final answer
x = 2,583,217.82
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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.