Finding the Fourth Proportional to 1,386,014.70, 2,079,324.45 and 787,262.70
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Solution
The fourth proportional to 1,386,014.70, 2,079,324.45 and 787,262.70 is: 1,181,065.81
Step by Step Solution
- Step 1: Write the proportion equation
1,386,014.70 : 2,079,324.45 = 787,262.70 : x - Step 2: Convert to fraction form
1,386,014.70/2,079,324.45 = 787,262.70/x - Step 3: Cross multiply
1,386,014.70x = 2,079,324.45 × 787,262.70 - Step 4: Simplify right side
1,386,014.70x = 1,636,974,580,683.02 - Step 5: Solve for x
x = 1,636,974,580,683.02/1,386,014.70 - Step 6: Final answer
x = 1,181,065.81
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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.