Finding the Fourth Proportional to 748,541.70, 1,122,812.55 and 249,905.70
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Solution
The fourth proportional to 748,541.70, 1,122,812.55 and 249,905.70 is: 374,858.55
Step by Step Solution
- Step 1: Write the proportion equation
748,541.70 : 1,122,812.55 = 249,905.70 : x - Step 2: Convert to fraction form
748,541.70/1,122,812.55 = 249,905.70/x - Step 3: Cross multiply
748,541.70x = 1,122,812.55 × 249,905.70 - Step 4: Simplify right side
748,541.70x = 280,597,256,276.54 - Step 5: Solve for x
x = 280,597,256,276.54/748,541.70 - Step 6: Final answer
x = 374,858.55
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Similar ratio
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1.5x scale
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.