Finding the Fourth Proportional to 430,907.99, 646,361.28 and 430,284.69
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Solution
The fourth proportional to 430,907.99, 646,361.28 and 430,284.69 is: 645,426.34
Step by Step Solution
- Step 1: Write the proportion equation
430,907.99 : 646,361.28 = 430,284.69 : x - Step 2: Convert to fraction form
430,907.99/646,361.28 = 430,284.69/x - Step 3: Cross multiply
430,907.99x = 646,361.28 × 430,284.69 - Step 4: Simplify right side
430,907.99x = 278,119,362,992.80 - Step 5: Solve for x
x = 278,119,362,992.80/430,907.99 - Step 6: Final answer
x = 645,426.34
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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.