Finding the Fourth Proportional to 1,389,930.13, 2,086,243.36 and 670,777.94
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Solution
The fourth proportional to 1,389,930.13, 2,086,243.36 and 670,777.94 is: 1,006,817.53
Step by Step Solution
- Step 1: Write the proportion equation
1,389,930.13 : 2,086,243.36 = 670,777.94 : x - Step 2: Convert to fraction form
1,389,930.13/2,086,243.36 = 670,777.94/x - Step 3: Cross multiply
1,389,930.13x = 2,086,243.36 × 670,777.94 - Step 4: Simplify right side
1,389,930.13x = 1,399,406,026,898.14 - Step 5: Solve for x
x = 1,399,406,026,898.14/1,389,930.13 - Step 6: Final answer
x = 1,006,817.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.