Finding the Fourth Proportional to 1,120,416.46, 1,546,195.74 and 611,137.06
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Solution
The fourth proportional to 1,120,416.46, 1,546,195.74 and 611,137.06 is: 843,380.61
Step by Step Solution
- Step 1: Write the proportion equation
1,120,416.46 : 1,546,195.74 = 611,137.06 : x - Step 2: Convert to fraction form
1,120,416.46/1,546,195.74 = 611,137.06/x - Step 3: Cross multiply
1,120,416.46x = 1,546,195.74 × 611,137.06 - Step 4: Simplify right side
1,120,416.46x = 944,937,518,728.13 - Step 5: Solve for x
x = 944,937,518,728.13/1,120,416.46 - Step 6: Final answer
x = 843,380.61
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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.