Finding the Fourth Proportional to 622,782.84, 930,761.79 and 454,657.23
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Solution
The fourth proportional to 622,782.84, 930,761.79 and 454,657.23 is: 679,494.60
Step by Step Solution
- Step 1: Write the proportion equation
622,782.84 : 930,761.79 = 454,657.23 : x - Step 2: Convert to fraction form
622,782.84/930,761.79 = 454,657.23/x - Step 3: Cross multiply
622,782.84x = 930,761.79 × 454,657.23 - Step 4: Simplify right side
622,782.84x = 423,177,577,231.24 - Step 5: Solve for x
x = 423,177,577,231.24/622,782.84 - Step 6: Final answer
x = 679,494.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.