Finding the Fourth Proportional to 505,422.74, 697,482.96 and 290,604.80
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Solution
The fourth proportional to 505,422.74, 697,482.96 and 290,604.80 is: 401,034.38
Step by Step Solution
- Step 1: Write the proportion equation
505,422.74 : 697,482.96 = 290,604.80 : x - Step 2: Convert to fraction form
505,422.74/697,482.96 = 290,604.80/x - Step 3: Cross multiply
505,422.74x = 697,482.96 × 290,604.80 - Step 4: Simplify right side
505,422.74x = 202,691,896,094.21 - Step 5: Solve for x
x = 202,691,896,094.21/505,422.74 - Step 6: Final answer
x = 401,034.38
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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.