Finding the Fourth Proportional to 479,752.40, 718,246.20 and 293,128.40
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Solution
The fourth proportional to 479,752.40, 718,246.20 and 293,128.40 is: 438,847.95
Step by Step Solution
- Step 1: Write the proportion equation
479,752.40 : 718,246.20 = 293,128.40 : x - Step 2: Convert to fraction form
479,752.40/718,246.20 = 293,128.40/x - Step 3: Cross multiply
479,752.40x = 718,246.20 × 293,128.40 - Step 4: Simplify right side
479,752.40x = 210,538,359,412.08 - Step 5: Solve for x
x = 210,538,359,412.08/479,752.40 - Step 6: Final answer
x = 438,847.95
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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.