Finding the Fourth Proportional to 316,574.09, 474,817.19 and 79,902.62
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Solution
The fourth proportional to 316,574.09, 474,817.19 and 79,902.62 is: 119,842.83
Step by Step Solution
- Step 1: Write the proportion equation
316,574.09 : 474,817.19 = 79,902.62 : x - Step 2: Convert to fraction form
316,574.09/474,817.19 = 79,902.62/x - Step 3: Cross multiply
316,574.09x = 474,817.19 × 79,902.62 - Step 4: Simplify right side
316,574.09x = 37,939,134,728.44 - Step 5: Solve for x
x = 37,939,134,728.44/316,574.09 - Step 6: Final answer
x = 119,842.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.