Finding the Fourth Proportional to 665,831.10, 918,846.95 and 359,906.48
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Solution
The fourth proportional to 665,831.10, 918,846.95 and 359,906.48 is: 496,670.96
Step by Step Solution
- Step 1: Write the proportion equation
665,831.10 : 918,846.95 = 359,906.48 : x - Step 2: Convert to fraction form
665,831.10/918,846.95 = 359,906.48/x - Step 3: Cross multiply
665,831.10x = 918,846.95 × 359,906.48 - Step 4: Simplify right side
665,831.10x = 330,698,971,433.24 - Step 5: Solve for x
x = 330,698,971,433.24/665,831.10 - Step 6: Final answer
x = 496,670.96
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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.