Finding the Fourth Proportional to 762,480.76, 1,052,349.42 and 423,058.36
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Solution
The fourth proportional to 762,480.76, 1,052,349.42 and 423,058.36 is: 583,890.43
Step by Step Solution
- Step 1: Write the proportion equation
762,480.76 : 1,052,349.42 = 423,058.36 : x - Step 2: Convert to fraction form
762,480.76/1,052,349.42 = 423,058.36/x - Step 3: Cross multiply
762,480.76x = 1,052,349.42 × 423,058.36 - Step 4: Simplify right side
762,480.76x = 445,205,219,772.15 - Step 5: Solve for x
x = 445,205,219,772.15/762,480.76 - Step 6: Final answer
x = 583,890.43
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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.