Finding the Fourth Proportional to 838,485.76, 1,157,072.24 and 456,511.84
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Solution
The fourth proportional to 838,485.76, 1,157,072.24 and 456,511.84 is: 629,965.59
Step by Step Solution
- Step 1: Write the proportion equation
838,485.76 : 1,157,072.24 = 456,511.84 : x - Step 2: Convert to fraction form
838,485.76/1,157,072.24 = 456,511.84/x - Step 3: Cross multiply
838,485.76x = 1,157,072.24 × 456,511.84 - Step 4: Simplify right side
838,485.76x = 528,217,177,295.32 - Step 5: Solve for x
x = 528,217,177,295.32/838,485.76 - Step 6: Final answer
x = 629,965.59
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1.5x scale
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.