Finding the Fourth Proportional to 665,145.20, 997,717.80 and 465,690.80
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Solution
The fourth proportional to 665,145.20, 997,717.80 and 465,690.80 is: 698,536.20
Step by Step Solution
- Step 1: Write the proportion equation
665,145.20 : 997,717.80 = 465,690.80 : x - Step 2: Convert to fraction form
665,145.20/997,717.80 = 465,690.80/x - Step 3: Cross multiply
665,145.20x = 997,717.80 × 465,690.80 - Step 4: Simplify right side
665,145.20x = 464,628,000,456.24 - Step 5: Solve for x
x = 464,628,000,456.24/665,145.20 - Step 6: Final answer
x = 698,536.20
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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.