Finding the Fourth Proportional to 513,912.64, 709,190.86 and 284,465.00
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Solution
The fourth proportional to 513,912.64, 709,190.86 and 284,465.00 is: 392,556.95
Step by Step Solution
- Step 1: Write the proportion equation
513,912.64 : 709,190.86 = 284,465.00 : x - Step 2: Convert to fraction form
513,912.64/709,190.86 = 284,465.00/x - Step 3: Cross multiply
513,912.64x = 709,190.86 × 284,465.00 - Step 4: Simplify right side
513,912.64x = 201,739,977,893.20 - Step 5: Solve for x
x = 201,739,977,893.20/513,912.64 - Step 6: Final answer
x = 392,556.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.