Finding the Fourth Proportional to 1,437,129.80, 2,155,101.58 and 490,576.84
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Solution
The fourth proportional to 1,437,129.80, 2,155,101.58 and 490,576.84 is: 735,662.79
Step by Step Solution
- Step 1: Write the proportion equation
1,437,129.80 : 2,155,101.58 = 490,576.84 : x - Step 2: Convert to fraction form
1,437,129.80/2,155,101.58 = 490,576.84/x - Step 3: Cross multiply
1,437,129.80x = 2,155,101.58 × 490,576.84 - Step 4: Simplify right side
1,437,129.80x = 1,057,242,922,995.41 - Step 5: Solve for x
x = 1,057,242,922,995.41/1,437,129.80 - Step 6: Final answer
x = 735,662.79
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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.