Finding the Fourth Proportional to 471,817.07, 651,134.79 and 355,321.95
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Solution
The fourth proportional to 471,817.07, 651,134.79 and 355,321.95 is: 490,364.81
Step by Step Solution
- Step 1: Write the proportion equation
471,817.07 : 651,134.79 = 355,321.95 : x - Step 2: Convert to fraction form
471,817.07/651,134.79 = 355,321.95/x - Step 3: Cross multiply
471,817.07x = 651,134.79 × 355,321.95 - Step 4: Simplify right side
471,817.07x = 231,362,483,295.64 - Step 5: Solve for x
x = 231,362,483,295.64/471,817.07 - Step 6: Final answer
x = 490,364.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.