Finding the Fourth Proportional to 421,466.64, 631,534.14 and 342,193.56
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Solution
The fourth proportional to 421,466.64, 631,534.14 and 342,193.56 is: 512,749.75
Step by Step Solution
- Step 1: Write the proportion equation
421,466.64 : 631,534.14 = 342,193.56 : x - Step 2: Convert to fraction form
421,466.64/631,534.14 = 342,193.56/x - Step 3: Cross multiply
421,466.64x = 631,534.14 × 342,193.56 - Step 4: Simplify right side
421,466.64x = 216,106,915,628.14 - Step 5: Solve for x
x = 216,106,915,628.14/421,466.64 - Step 6: Final answer
x = 512,749.75
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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.