Finding the Fourth Proportional to 1,507,549.84, 2,080,431.78 and 819,221.56
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Solution
The fourth proportional to 1,507,549.84, 2,080,431.78 and 819,221.56 is: 1,130,532.82
Step by Step Solution
- Step 1: Write the proportion equation
1,507,549.84 : 2,080,431.78 = 819,221.56 : x - Step 2: Convert to fraction form
1,507,549.84/2,080,431.78 = 819,221.56/x - Step 3: Cross multiply
1,507,549.84x = 2,080,431.78 × 819,221.56 - Step 4: Simplify right side
1,507,549.84x = 1,704,334,568,285.18 - Step 5: Solve for x
x = 1,704,334,568,285.18/1,507,549.84 - Step 6: Final answer
x = 1,130,532.82
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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.