Finding the Fourth Proportional to 418,775.05, 578,012.21 and 237,593.03
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Solution
The fourth proportional to 418,775.05, 578,012.21 and 237,593.03 is: 327,936.62
Step by Step Solution
- Step 1: Write the proportion equation
418,775.05 : 578,012.21 = 237,593.03 : x - Step 2: Convert to fraction form
418,775.05/578,012.21 = 237,593.03/x - Step 3: Cross multiply
418,775.05x = 578,012.21 × 237,593.03 - Step 4: Simplify right side
418,775.05x = 137,331,674,389.91 - Step 5: Solve for x
x = 137,331,674,389.91/418,775.05 - Step 6: Final answer
x = 327,936.62
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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.