Finding the Fourth Proportional to 1,628,781.09, 2,247,987.71 and 903,861.66
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Solution
The fourth proportional to 1,628,781.09, 2,247,987.71 and 903,861.66 is: 1,247,478.81
Step by Step Solution
- Step 1: Write the proportion equation
1,628,781.09 : 2,247,987.71 = 903,861.66 : x - Step 2: Convert to fraction form
1,628,781.09/2,247,987.71 = 903,861.66/x - Step 3: Cross multiply
1,628,781.09x = 2,247,987.71 × 903,861.66 - Step 4: Simplify right side
1,628,781.09x = 2,031,869,903,220.20 - Step 5: Solve for x
x = 2,031,869,903,220.20/1,628,781.09 - Step 6: Final answer
x = 1,247,478.81
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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.