Finding the Fourth Proportional to 816,238.08, 1,126,402.56 and 458,542.08
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Solution
The fourth proportional to 816,238.08, 1,126,402.56 and 458,542.08 is: 632,784.71
Step by Step Solution
- Step 1: Write the proportion equation
816,238.08 : 1,126,402.56 = 458,542.08 : x - Step 2: Convert to fraction form
816,238.08/1,126,402.56 = 458,542.08/x - Step 3: Cross multiply
816,238.08x = 1,126,402.56 × 458,542.08 - Step 4: Simplify right side
816,238.08x = 516,502,972,779.73 - Step 5: Solve for x
x = 516,502,972,779.73/816,238.08 - Step 6: Final answer
x = 632,784.71
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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.