Finding the Fourth Proportional to 1,245,272.40, 1,867,908.60 and 1,123,237.80
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Solution
The fourth proportional to 1,245,272.40, 1,867,908.60 and 1,123,237.80 is: 1,684,856.70
Step by Step Solution
- Step 1: Write the proportion equation
1,245,272.40 : 1,867,908.60 = 1,123,237.80 : x - Step 2: Convert to fraction form
1,245,272.40/1,867,908.60 = 1,123,237.80/x - Step 3: Cross multiply
1,245,272.40x = 1,867,908.60 × 1,123,237.80 - Step 4: Simplify right side
1,245,272.40x = 2,098,105,546,465.08 - Step 5: Solve for x
x = 2,098,105,546,465.08/1,245,272.40 - Step 6: Final answer
x = 1,684,856.70
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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.