Finding the Fourth Proportional to 4,878,726.62, 7,317,425.61 and 1,284,192.54
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Solution
The fourth proportional to 4,878,726.62, 7,317,425.61 and 1,284,192.54 is: 1,926,113.95
Step by Step Solution
- Step 1: Write the proportion equation
4,878,726.62 : 7,317,425.61 = 1,284,192.54 : x - Step 2: Convert to fraction form
4,878,726.62/7,317,425.61 = 1,284,192.54/x - Step 3: Cross multiply
4,878,726.62x = 7,317,425.61 × 1,284,192.54 - Step 4: Simplify right side
4,878,726.62x = 9,396,983,380,366.95 - Step 5: Solve for x
x = 9,396,983,380,366.95/4,878,726.62 - Step 6: Final answer
x = 1,926,113.95
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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.