Finding the Fourth Proportional to 1,912,320.36, 2,867,430.60 and 1,313,432.28
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Solution
The fourth proportional to 1,912,320.36, 2,867,430.60 and 1,313,432.28 is: 1,969,427.29
Step by Step Solution
- Step 1: Write the proportion equation
1,912,320.36 : 2,867,430.60 = 1,313,432.28 : x - Step 2: Convert to fraction form
1,912,320.36/2,867,430.60 = 1,313,432.28/x - Step 3: Cross multiply
1,912,320.36x = 2,867,430.60 × 1,313,432.28 - Step 4: Simplify right side
1,912,320.36x = 3,766,175,910,699.77 - Step 5: Solve for x
x = 3,766,175,910,699.77/1,912,320.36 - Step 6: Final answer
x = 1,969,427.29
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.