Finding the Fourth Proportional to 1,397,470.23, 1,928,459.12 and 777,272.12
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Solution
The fourth proportional to 1,397,470.23, 1,928,459.12 and 777,272.12 is: 1,072,607.82
Step by Step Solution
- Step 1: Write the proportion equation
1,397,470.23 : 1,928,459.12 = 777,272.12 : x - Step 2: Convert to fraction form
1,397,470.23/1,928,459.12 = 777,272.12/x - Step 3: Cross multiply
1,397,470.23x = 1,928,459.12 × 777,272.12 - Step 4: Simplify right side
1,397,470.23x = 1,498,937,498,893.44 - Step 5: Solve for x
x = 1,498,937,498,893.44/1,397,470.23 - Step 6: Final answer
x = 1,072,607.82
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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.