Finding the Fourth Proportional to 723,621.12, 1,080,161.04 and 670,258.08
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Solution
The fourth proportional to 723,621.12, 1,080,161.04 and 670,258.08 is: 1,000,505.16
Step by Step Solution
- Step 1: Write the proportion equation
723,621.12 : 1,080,161.04 = 670,258.08 : x - Step 2: Convert to fraction form
723,621.12/1,080,161.04 = 670,258.08/x - Step 3: Cross multiply
723,621.12x = 1,080,161.04 × 670,258.08 - Step 4: Simplify right side
723,621.12x = 723,986,664,761.20 - Step 5: Solve for x
x = 723,986,664,761.20/723,621.12 - Step 6: Final answer
x = 1,000,505.16
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.