Finding the Fourth Proportional to 769,954.68, 1,155,129.12 and 320,526.18
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Solution
The fourth proportional to 769,954.68, 1,155,129.12 and 320,526.18 is: 480,871.32
Step by Step Solution
- Step 1: Write the proportion equation
769,954.68 : 1,155,129.12 = 320,526.18 : x - Step 2: Convert to fraction form
769,954.68/1,155,129.12 = 320,526.18/x - Step 3: Cross multiply
769,954.68x = 1,155,129.12 × 320,526.18 - Step 4: Simplify right side
769,954.68x = 370,249,124,240.36 - Step 5: Solve for x
x = 370,249,124,240.36/769,954.68 - Step 6: Final answer
x = 480,871.32
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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.