Finding the Fourth Proportional to 1,012,962.76, 1,396,520.66 and 649,756.12
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Solution
The fourth proportional to 1,012,962.76, 1,396,520.66 and 649,756.12 is: 895,785.99
Step by Step Solution
- Step 1: Write the proportion equation
1,012,962.76 : 1,396,520.66 = 649,756.12 : x - Step 2: Convert to fraction form
1,012,962.76/1,396,520.66 = 649,756.12/x - Step 3: Cross multiply
1,012,962.76x = 1,396,520.66 × 649,756.12 - Step 4: Simplify right side
1,012,962.76x = 907,397,845,541.44 - Step 5: Solve for x
x = 907,397,845,541.44/1,012,962.76 - Step 6: Final answer
x = 895,785.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.