Finding the Fourth Proportional to 1,426,394.62, 1,968,420.48 and 781,812.82
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Solution
The fourth proportional to 1,426,394.62, 1,968,420.48 and 781,812.82 is: 1,078,899.45
Step by Step Solution
- Step 1: Write the proportion equation
1,426,394.62 : 1,968,420.48 = 781,812.82 : x - Step 2: Convert to fraction form
1,426,394.62/1,968,420.48 = 781,812.82/x - Step 3: Cross multiply
1,426,394.62x = 1,968,420.48 × 781,812.82 - Step 4: Simplify right side
1,426,394.62x = 1,538,936,366,414.55 - Step 5: Solve for x
x = 1,538,936,366,414.55/1,426,394.62 - Step 6: Final answer
x = 1,078,899.45
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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.