Finding the Fourth Proportional to 531,920.48, 734,023.28 and 290,201.09
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Solution
The fourth proportional to 531,920.48, 734,023.28 and 290,201.09 is: 400,462.78
Step by Step Solution
- Step 1: Write the proportion equation
531,920.48 : 734,023.28 = 290,201.09 : x - Step 2: Convert to fraction form
531,920.48/734,023.28 = 290,201.09/x - Step 3: Cross multiply
531,920.48x = 734,023.28 × 290,201.09 - Step 4: Simplify right side
531,920.48x = 213,014,352,996.76 - Step 5: Solve for x
x = 213,014,352,996.76/531,920.48 - Step 6: Final answer
x = 400,462.78
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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.