Finding the Fourth Proportional to 542,201.90, 748,281.81 and 300,507.62
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Solution
The fourth proportional to 542,201.90, 748,281.81 and 300,507.62 is: 414,724.45
Step by Step Solution
- Step 1: Write the proportion equation
542,201.90 : 748,281.81 = 300,507.62 : x - Step 2: Convert to fraction form
542,201.90/748,281.81 = 300,507.62/x - Step 3: Cross multiply
542,201.90x = 748,281.81 × 300,507.62 - Step 4: Simplify right side
542,201.90x = 224,864,383,616.28 - Step 5: Solve for x
x = 224,864,383,616.28/542,201.90 - Step 6: Final answer
x = 414,724.45
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1.5x scale
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.