Finding the Fourth Proportional to 447,823.11, 618,782.81 and 357,920.99
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Solution
The fourth proportional to 447,823.11, 618,782.81 and 357,920.99 is: 494,559.91
Step by Step Solution
- Step 1: Write the proportion equation
447,823.11 : 618,782.81 = 357,920.99 : x - Step 2: Convert to fraction form
447,823.11/618,782.81 = 357,920.99/x - Step 3: Cross multiply
447,823.11x = 618,782.81 × 357,920.99 - Step 4: Simplify right side
447,823.11x = 221,475,355,950.18 - Step 5: Solve for x
x = 221,475,355,950.18/447,823.11 - Step 6: Final answer
x = 494,559.91
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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.