Finding the Fourth Proportional to 1,385,804.40, 2,079,397.80 and 787,225.20
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Solution
The fourth proportional to 1,385,804.40, 2,079,397.80 and 787,225.20 is: 1,181,230.45
Step by Step Solution
- Step 1: Write the proportion equation
1,385,804.40 : 2,079,397.80 = 787,225.20 : x - Step 2: Convert to fraction form
1,385,804.40/2,079,397.80 = 787,225.20/x - Step 3: Cross multiply
1,385,804.40x = 2,079,397.80 × 787,225.20 - Step 4: Simplify right side
1,385,804.40x = 1,636,954,348,984.56 - Step 5: Solve for x
x = 1,636,954,348,984.56/1,385,804.40 - Step 6: Final answer
x = 1,181,230.45
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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.