Finding the Fourth Proportional to 958,811.60, 1,438,735.80 and 426,414.80
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Solution
The fourth proportional to 958,811.60, 1,438,735.80 and 426,414.80 is: 639,852.75
Step by Step Solution
- Step 1: Write the proportion equation
958,811.60 : 1,438,735.80 = 426,414.80 : x - Step 2: Convert to fraction form
958,811.60/1,438,735.80 = 426,414.80/x - Step 3: Cross multiply
958,811.60x = 1,438,735.80 × 426,414.80 - Step 4: Simplify right side
958,811.60x = 613,498,238,409.84 - Step 5: Solve for x
x = 613,498,238,409.84/958,811.60 - Step 6: Final answer
x = 639,852.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.