Finding the Fourth Proportional to 440,346.05, 607,680.66 and 239,142.05
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Solution
The fourth proportional to 440,346.05, 607,680.66 and 239,142.05 is: 330,017.72
Step by Step Solution
- Step 1: Write the proportion equation
440,346.05 : 607,680.66 = 239,142.05 : x - Step 2: Convert to fraction form
440,346.05/607,680.66 = 239,142.05/x - Step 3: Cross multiply
440,346.05x = 607,680.66 × 239,142.05 - Step 4: Simplify right side
440,346.05x = 145,321,995,739.35 - Step 5: Solve for x
x = 145,321,995,739.35/440,346.05 - Step 6: Final answer
x = 330,017.72
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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.