Finding the Fourth Proportional to 679,566.36, 937,781.72 and 373,642.44
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Solution
The fourth proportional to 679,566.36, 937,781.72 and 373,642.44 is: 515,615.65
Step by Step Solution
- Step 1: Write the proportion equation
679,566.36 : 937,781.72 = 373,642.44 : x - Step 2: Convert to fraction form
679,566.36/937,781.72 = 373,642.44/x - Step 3: Cross multiply
679,566.36x = 937,781.72 × 373,642.44 - Step 4: Simplify right side
679,566.36x = 350,395,050,048.20 - Step 5: Solve for x
x = 350,395,050,048.20/679,566.36 - Step 6: Final answer
x = 515,615.65
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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.