Finding the Fourth Proportional to 1,389,767.41, 2,085,010.44 and 813,876.99
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Solution
The fourth proportional to 1,389,767.41, 2,085,010.44 and 813,876.99 is: 1,221,025.91
Step by Step Solution
- Step 1: Write the proportion equation
1,389,767.41 : 2,085,010.44 = 813,876.99 : x - Step 2: Convert to fraction form
1,389,767.41/2,085,010.44 = 813,876.99/x - Step 3: Cross multiply
1,389,767.41x = 2,085,010.44 × 813,876.99 - Step 4: Simplify right side
1,389,767.41x = 1,696,942,021,025.78 - Step 5: Solve for x
x = 1,696,942,021,025.78/1,389,767.41 - Step 6: Final answer
x = 1,221,025.91
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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.