Finding the Fourth Proportional to 1,299,206.64, 1,793,230.20 and 1,040,071.44
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Solution
The fourth proportional to 1,299,206.64, 1,793,230.20 and 1,040,071.44 is: 1,435,558.79
Step by Step Solution
- Step 1: Write the proportion equation
1,299,206.64 : 1,793,230.20 = 1,040,071.44 : x - Step 2: Convert to fraction form
1,299,206.64/1,793,230.20 = 1,040,071.44/x - Step 3: Cross multiply
1,299,206.64x = 1,793,230.20 × 1,040,071.44 - Step 4: Simplify right side
1,299,206.64x = 1,865,087,516,365.49 - Step 5: Solve for x
x = 1,865,087,516,365.49/1,299,206.64 - Step 6: Final answer
x = 1,435,558.79
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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.