Finding the Fourth Proportional to 447,820.11, 618,778.67 and 357,917.99
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Solution
The fourth proportional to 447,820.11, 618,778.67 and 357,917.99 is: 494,555.76
Step by Step Solution
- Step 1: Write the proportion equation
447,820.11 : 618,778.67 = 357,917.99 : x - Step 2: Convert to fraction form
447,820.11/618,778.67 = 357,917.99/x - Step 3: Cross multiply
447,820.11x = 618,778.67 × 357,917.99 - Step 4: Simplify right side
447,820.11x = 221,472,012,937.79 - Step 5: Solve for x
x = 221,472,012,937.79/447,820.11 - Step 6: Final answer
x = 494,555.76
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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.