Finding the Fourth Proportional to 712,147.68, 982,762.17 and 389,854.96
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Solution
The fourth proportional to 712,147.68, 982,762.17 and 389,854.96 is: 537,998.95
Step by Step Solution
- Step 1: Write the proportion equation
712,147.68 : 982,762.17 = 389,854.96 : x - Step 2: Convert to fraction form
712,147.68/982,762.17 = 389,854.96/x - Step 3: Cross multiply
712,147.68x = 982,762.17 × 389,854.96 - Step 4: Simplify right side
712,147.68x = 383,134,702,556.00 - Step 5: Solve for x
x = 383,134,702,556.00/712,147.68 - Step 6: Final answer
x = 537,998.95
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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.