Finding the Fourth Proportional to 665,708.40, 999,218.70 and 329,129.10
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Solution
The fourth proportional to 665,708.40, 999,218.70 and 329,129.10 is: 494,018.03
Step by Step Solution
- Step 1: Write the proportion equation
665,708.40 : 999,218.70 = 329,129.10 : x - Step 2: Convert to fraction form
665,708.40/999,218.70 = 329,129.10/x - Step 3: Cross multiply
665,708.40x = 999,218.70 × 329,129.10 - Step 4: Simplify right side
665,708.40x = 328,871,951,434.17 - Step 5: Solve for x
x = 328,871,951,434.17/665,708.40 - Step 6: Final answer
x = 494,018.03
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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.