Finding the Fourth Proportional to 698,355.68, 963,659.03 and 392,383.44
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Solution
The fourth proportional to 698,355.68, 963,659.03 and 392,383.44 is: 541,448.80
Step by Step Solution
- Step 1: Write the proportion equation
698,355.68 : 963,659.03 = 392,383.44 : x - Step 2: Convert to fraction form
698,355.68/963,659.03 = 392,383.44/x - Step 3: Cross multiply
698,355.68x = 963,659.03 × 392,383.44 - Step 4: Simplify right side
698,355.68x = 378,123,843,216.55 - Step 5: Solve for x
x = 378,123,843,216.55/698,355.68 - Step 6: Final answer
x = 541,448.80
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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.