Finding the Fourth Proportional to 1,587,517.20, 2,190,710.88 and 942,920.28
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Solution
The fourth proportional to 1,587,517.20, 2,190,710.88 and 942,920.28 is: 1,301,192.65
Step by Step Solution
- Step 1: Write the proportion equation
1,587,517.20 : 2,190,710.88 = 942,920.28 : x - Step 2: Convert to fraction form
1,587,517.20/2,190,710.88 = 942,920.28/x - Step 3: Cross multiply
1,587,517.20x = 2,190,710.88 × 942,920.28 - Step 4: Simplify right side
1,587,517.20x = 2,065,665,716,368.65 - Step 5: Solve for x
x = 2,065,665,716,368.65/1,587,517.20 - Step 6: Final answer
x = 1,301,192.65
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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.