Finding the Fourth Proportional to 1,489,748.74, 2,055,711.16 and 836,225.07
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Solution
The fourth proportional to 1,489,748.74, 2,055,711.16 and 836,225.07 is: 1,153,910.83
Step by Step Solution
- Step 1: Write the proportion equation
1,489,748.74 : 2,055,711.16 = 836,225.07 : x - Step 2: Convert to fraction form
1,489,748.74/2,055,711.16 = 836,225.07/x - Step 3: Cross multiply
1,489,748.74x = 2,055,711.16 × 836,225.07 - Step 4: Simplify right side
1,489,748.74x = 1,719,037,202,007.15 - Step 5: Solve for x
x = 1,719,037,202,007.15/1,489,748.74 - Step 6: Final answer
x = 1,153,910.83
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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.