Finding the Fourth Proportional to 886,831.40, 1,330,247.10 and 512,661.80
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Solution
The fourth proportional to 886,831.40, 1,330,247.10 and 512,661.80 is: 768,992.70
Step by Step Solution
- Step 1: Write the proportion equation
886,831.40 : 1,330,247.10 = 512,661.80 : x - Step 2: Convert to fraction form
886,831.40/1,330,247.10 = 512,661.80/x - Step 3: Cross multiply
886,831.40x = 1,330,247.10 × 512,661.80 - Step 4: Simplify right side
886,831.40x = 681,966,872,730.78 - Step 5: Solve for x
x = 681,966,872,730.78/886,831.40 - Step 6: Final answer
x = 768,992.70
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1.5x scale
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.