Finding the Fourth Proportional to 1,405,060.06, 1,939,029.82 and 861,090.75
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Solution
The fourth proportional to 1,405,060.06, 1,939,029.82 and 861,090.75 is: 1,188,334.00
Step by Step Solution
- Step 1: Write the proportion equation
1,405,060.06 : 1,939,029.82 = 861,090.75 : x - Step 2: Convert to fraction form
1,405,060.06/1,939,029.82 = 861,090.75/x - Step 3: Cross multiply
1,405,060.06x = 1,939,029.82 × 861,090.75 - Step 4: Simplify right side
1,405,060.06x = 1,669,680,641,976.17 - Step 5: Solve for x
x = 1,669,680,641,976.17/1,405,060.06 - Step 6: Final answer
x = 1,188,334.00
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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.