Finding the Fourth Proportional to 1,190,423.94, 1,642,789.68 and 646,568.76
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Solution
The fourth proportional to 1,190,423.94, 1,642,789.68 and 646,568.76 is: 892,267.41
Step by Step Solution
- Step 1: Write the proportion equation
1,190,423.94 : 1,642,789.68 = 646,568.76 : x - Step 2: Convert to fraction form
1,190,423.94/1,642,789.68 = 646,568.76/x - Step 3: Cross multiply
1,190,423.94x = 1,642,789.68 × 646,568.76 - Step 4: Simplify right side
1,190,423.94x = 1,062,176,486,338.40 - Step 5: Solve for x
x = 1,062,176,486,338.40/1,190,423.94 - Step 6: Final answer
x = 892,267.41
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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.