Finding the Fourth Proportional to 402,754.68, 555,881.94 and 307,090.44
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Solution
The fourth proportional to 402,754.68, 555,881.94 and 307,090.44 is: 423,846.17
Step by Step Solution
- Step 1: Write the proportion equation
402,754.68 : 555,881.94 = 307,090.44 : x - Step 2: Convert to fraction form
402,754.68/555,881.94 = 307,090.44/x - Step 3: Cross multiply
402,754.68x = 555,881.94 × 307,090.44 - Step 4: Simplify right side
402,754.68x = 170,706,029,542.65 - Step 5: Solve for x
x = 170,706,029,542.65/402,754.68 - Step 6: Final answer
x = 423,846.17
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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.