Finding the Fourth Proportional to 1,190,390.34, 1,642,750.54 and 646,536.76
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Solution
The fourth proportional to 1,190,390.34, 1,642,750.54 and 646,536.76 is: 892,227.18
Step by Step Solution
- Step 1: Write the proportion equation
1,190,390.34 : 1,642,750.54 = 646,536.76 : x - Step 2: Convert to fraction form
1,190,390.34/1,642,750.54 = 646,536.76/x - Step 3: Cross multiply
1,190,390.34x = 1,642,750.54 × 646,536.76 - Step 4: Simplify right side
1,190,390.34x = 1,062,098,611,619.85 - Step 5: Solve for x
x = 1,062,098,611,619.85/1,190,390.34 - Step 6: Final answer
x = 892,227.18
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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.