Finding the Fourth Proportional to 542,394.72, 748,454.27 and 300,656.70
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Solution
The fourth proportional to 542,394.72, 748,454.27 and 300,656.70 is: 414,878.28
Step by Step Solution
- Step 1: Write the proportion equation
542,394.72 : 748,454.27 = 300,656.70 : x - Step 2: Convert to fraction form
542,394.72/748,454.27 = 300,656.70/x - Step 3: Cross multiply
542,394.72x = 748,454.27 × 300,656.70 - Step 4: Simplify right side
542,394.72x = 225,027,789,415.83 - Step 5: Solve for x
x = 225,027,789,415.83/542,394.72 - Step 6: Final answer
x = 414,878.28
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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.