Finding the Fourth Proportional to 965,745.20, 1,448,617.80 and 716,913.20
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Solution
The fourth proportional to 965,745.20, 1,448,617.80 and 716,913.20 is: 1,075,369.80
Step by Step Solution
- Step 1: Write the proportion equation
965,745.20 : 1,448,617.80 = 716,913.20 : x - Step 2: Convert to fraction form
965,745.20/1,448,617.80 = 716,913.20/x - Step 3: Cross multiply
965,745.20x = 1,448,617.80 × 716,913.20 - Step 4: Simplify right side
965,745.20x = 1,038,533,222,574.96 - Step 5: Solve for x
x = 1,038,533,222,574.96/965,745.20 - Step 6: Final answer
x = 1,075,369.80
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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.