Finding the Fourth Proportional to 1,390,679.14, 2,086,618.16 and 750,855.89
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Solution
The fourth proportional to 1,390,679.14, 2,086,618.16 and 750,855.89 is: 1,126,607.49
Step by Step Solution
- Step 1: Write the proportion equation
1,390,679.14 : 2,086,618.16 = 750,855.89 : x - Step 2: Convert to fraction form
1,390,679.14/2,086,618.16 = 750,855.89/x - Step 3: Cross multiply
1,390,679.14x = 2,086,618.16 × 750,855.89 - Step 4: Simplify right side
1,390,679.14x = 1,566,749,531,862.68 - Step 5: Solve for x
x = 1,566,749,531,862.68/1,390,679.14 - Step 6: Final answer
x = 1,126,607.49
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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.