Finding the Fourth Proportional to 1,483,394.40, 2,212,621.20 and 1,347,171.48
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Solution
The fourth proportional to 1,483,394.40, 2,212,621.20 and 1,347,171.48 is: 2,009,432.00
Step by Step Solution
- Step 1: Write the proportion equation
1,483,394.40 : 2,212,621.20 = 1,347,171.48 : x - Step 2: Convert to fraction form
1,483,394.40/2,212,621.20 = 1,347,171.48/x - Step 3: Cross multiply
1,483,394.40x = 2,212,621.20 × 1,347,171.48 - Step 4: Simplify right side
1,483,394.40x = 2,980,780,176,683.38 - Step 5: Solve for x
x = 2,980,780,176,683.38/1,483,394.40 - Step 6: Final answer
x = 2,009,432.00
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.