Finding the Fourth Proportional to 665,997.05, 918,462.65 and 436,470.73
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Solution
The fourth proportional to 665,997.05, 918,462.65 and 436,470.73 is: 601,927.68
Step by Step Solution
- Step 1: Write the proportion equation
665,997.05 : 918,462.65 = 436,470.73 : x - Step 2: Convert to fraction form
665,997.05/918,462.65 = 436,470.73/x - Step 3: Cross multiply
665,997.05x = 918,462.65 × 436,470.73 - Step 4: Simplify right side
665,997.05x = 400,882,058,844.72 - Step 5: Solve for x
x = 400,882,058,844.72/665,997.05 - Step 6: Final answer
x = 601,927.68
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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.