Finding the Fourth Proportional to 744,070.69, 1,026,852.69 and 421,787.08
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Solution
The fourth proportional to 744,070.69, 1,026,852.69 and 421,787.08 is: 582,086.09
Step by Step Solution
- Step 1: Write the proportion equation
744,070.69 : 1,026,852.69 = 421,787.08 : x - Step 2: Convert to fraction form
744,070.69/1,026,852.69 = 421,787.08/x - Step 3: Cross multiply
744,070.69x = 1,026,852.69 × 421,787.08 - Step 4: Simplify right side
744,070.69x = 433,113,197,705.25 - Step 5: Solve for x
x = 433,113,197,705.25/744,070.69 - Step 6: Final answer
x = 582,086.09
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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.