Finding the Fourth Proportional to 753,728.24, 1,040,106.48 and 414,130.88
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Solution
The fourth proportional to 753,728.24, 1,040,106.48 and 414,130.88 is: 571,479.47
Step by Step Solution
- Step 1: Write the proportion equation
753,728.24 : 1,040,106.48 = 414,130.88 : x - Step 2: Convert to fraction form
753,728.24/1,040,106.48 = 414,130.88/x - Step 3: Cross multiply
753,728.24x = 1,040,106.48 × 414,130.88 - Step 4: Simplify right side
753,728.24x = 430,740,211,856.10 - Step 5: Solve for x
x = 430,740,211,856.10/753,728.24 - Step 6: Final answer
x = 571,479.47
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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.