Finding the Fourth Proportional to 492,649.82, 679,798.99 and 277,777.07
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Solution
The fourth proportional to 492,649.82, 679,798.99 and 277,777.07 is: 383,299.79
Step by Step Solution
- Step 1: Write the proportion equation
492,649.82 : 679,798.99 = 277,777.07 : x - Step 2: Convert to fraction form
492,649.82/679,798.99 = 277,777.07/x - Step 3: Cross multiply
492,649.82x = 679,798.99 × 277,777.07 - Step 4: Simplify right side
492,649.82x = 188,832,571,631.16 - Step 5: Solve for x
x = 188,832,571,631.16/492,649.82 - Step 6: Final answer
x = 383,299.79
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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.