Finding the Fourth Proportional to 708,378.43, 977,193.93 and 449,812.99
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Solution
The fourth proportional to 708,378.43, 977,193.93 and 449,812.99 is: 620,508.06
Step by Step Solution
- Step 1: Write the proportion equation
708,378.43 : 977,193.93 = 449,812.99 : x - Step 2: Convert to fraction form
708,378.43/977,193.93 = 449,812.99/x - Step 3: Cross multiply
708,378.43x = 977,193.93 × 449,812.99 - Step 4: Simplify right side
708,378.43x = 439,554,521,020.17 - Step 5: Solve for x
x = 439,554,521,020.17/708,378.43 - Step 6: Final answer
x = 620,508.06
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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.