Finding the Fourth Proportional to 447,822.11, 618,781.43 and 357,919.99
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Solution
The fourth proportional to 447,822.11, 618,781.43 and 357,919.99 is: 494,558.53
Step by Step Solution
- Step 1: Write the proportion equation
447,822.11 : 618,781.43 = 357,919.99 : x - Step 2: Convert to fraction form
447,822.11/618,781.43 = 357,919.99/x - Step 3: Cross multiply
447,822.11x = 618,781.43 × 357,919.99 - Step 4: Simplify right side
447,822.11x = 221,474,243,237.79 - Step 5: Solve for x
x = 221,474,243,237.79/447,822.11 - Step 6: Final answer
x = 494,558.53
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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.