Finding the Fourth Proportional to 440,409.60, 607,747.20 and 239,201.28
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Solution
The fourth proportional to 440,409.60, 607,747.20 and 239,201.28 is: 330,087.96
Step by Step Solution
- Step 1: Write the proportion equation
440,409.60 : 607,747.20 = 239,201.28 : x - Step 2: Convert to fraction form
440,409.60/607,747.20 = 239,201.28/x - Step 3: Cross multiply
440,409.60x = 607,747.20 × 239,201.28 - Step 4: Simplify right side
440,409.60x = 145,373,908,156.42 - Step 5: Solve for x
x = 145,373,908,156.42/440,409.60 - Step 6: Final answer
x = 330,087.96
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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.