Finding the Fourth Proportional to 753,749.77, 1,040,338.74 and 463,610.71
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Solution
The fourth proportional to 753,749.77, 1,040,338.74 and 463,610.71 is: 639,883.68
Step by Step Solution
- Step 1: Write the proportion equation
753,749.77 : 1,040,338.74 = 463,610.71 : x - Step 2: Convert to fraction form
753,749.77/1,040,338.74 = 463,610.71/x - Step 3: Cross multiply
753,749.77x = 1,040,338.74 × 463,610.71 - Step 4: Simplify right side
753,749.77x = 482,312,176,471.15 - Step 5: Solve for x
x = 482,312,176,471.15/753,749.77 - Step 6: Final answer
x = 639,883.68
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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.