Finding the Fourth Proportional to 861,037.74, 1,291,504.10 and 321,189.75
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Solution
The fourth proportional to 861,037.74, 1,291,504.10 and 321,189.75 is: 481,765.04
Step by Step Solution
- Step 1: Write the proportion equation
861,037.74 : 1,291,504.10 = 321,189.75 : x - Step 2: Convert to fraction form
861,037.74/1,291,504.10 = 321,189.75/x - Step 3: Cross multiply
861,037.74x = 1,291,504.10 × 321,189.75 - Step 4: Simplify right side
861,037.74x = 414,817,877,397.03 - Step 5: Solve for x
x = 414,817,877,397.03/861,037.74 - Step 6: Final answer
x = 481,765.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.