Finding the Fourth Proportional to 1,245,123.09, 1,868,427.41 and 646,079.49
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Solution
The fourth proportional to 1,245,123.09, 1,868,427.41 and 646,079.49 is: 969,504.65
Step by Step Solution
- Step 1: Write the proportion equation
1,245,123.09 : 1,868,427.41 = 646,079.49 : x - Step 2: Convert to fraction form
1,245,123.09/1,868,427.41 = 646,079.49/x - Step 3: Cross multiply
1,245,123.09x = 1,868,427.41 × 646,079.49 - Step 4: Simplify right side
1,245,123.09x = 1,207,152,624,924.42 - Step 5: Solve for x
x = 1,207,152,624,924.42/1,245,123.09 - Step 6: Final answer
x = 969,504.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.