Finding the Fourth Proportional to 1,092,381.70, 1,637,435.62 and 611,905.09
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Solution
The fourth proportional to 1,092,381.70, 1,637,435.62 and 611,905.09 is: 917,220.78
Step by Step Solution
- Step 1: Write the proportion equation
1,092,381.70 : 1,637,435.62 = 611,905.09 : x - Step 2: Convert to fraction form
1,092,381.70/1,637,435.62 = 611,905.09/x - Step 3: Cross multiply
1,092,381.70x = 1,637,435.62 × 611,905.09 - Step 4: Simplify right side
1,092,381.70x = 1,001,955,190,425.31 - Step 5: Solve for x
x = 1,001,955,190,425.31/1,092,381.70 - Step 6: Final answer
x = 917,220.78
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1.5x scale
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.