Finding the Fourth Proportional to 1,278,427.76, 1,918,497.72 and 530,474.48
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Solution
The fourth proportional to 1,278,427.76, 1,918,497.72 and 530,474.48 is: 796,066.94
Step by Step Solution
- Step 1: Write the proportion equation
1,278,427.76 : 1,918,497.72 = 530,474.48 : x - Step 2: Convert to fraction form
1,278,427.76/1,918,497.72 = 530,474.48/x - Step 3: Cross multiply
1,278,427.76x = 1,918,497.72 × 530,474.48 - Step 4: Simplify right side
1,278,427.76x = 1,017,714,080,398.19 - Step 5: Solve for x
x = 1,017,714,080,398.19/1,278,427.76 - Step 6: Final answer
x = 796,066.94
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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.