Finding the Fourth Proportional to 505,569.68, 697,722.90 and 290,777.12
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Solution
The fourth proportional to 505,569.68, 697,722.90 and 290,777.12 is: 401,293.56
Step by Step Solution
- Step 1: Write the proportion equation
505,569.68 : 697,722.90 = 290,777.12 : x - Step 2: Convert to fraction form
505,569.68/697,722.90 = 290,777.12/x - Step 3: Cross multiply
505,569.68x = 697,722.90 × 290,777.12 - Step 4: Simplify right side
505,569.68x = 202,881,855,420.05 - Step 5: Solve for x
x = 202,881,855,420.05/505,569.68 - Step 6: Final answer
x = 401,293.56
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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.