Finding the Fourth Proportional to 1,139,105.07, 1,707,813.99 and 689,720.31
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Solution
The fourth proportional to 1,139,105.07, 1,707,813.99 and 689,720.31 is: 1,034,069.66
Step by Step Solution
- Step 1: Write the proportion equation
1,139,105.07 : 1,707,813.99 = 689,720.31 : x - Step 2: Convert to fraction form
1,139,105.07/1,707,813.99 = 689,720.31/x - Step 3: Cross multiply
1,139,105.07x = 1,707,813.99 × 689,720.31 - Step 4: Simplify right side
1,139,105.07x = 1,177,913,994,605.14 - Step 5: Solve for x
x = 1,177,913,994,605.14/1,139,105.07 - Step 6: Final answer
x = 1,034,069.66
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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.