Finding the Fourth Proportional to 644,134.20, 966,201.30 and 555,487.80
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Solution
The fourth proportional to 644,134.20, 966,201.30 and 555,487.80 is: 833,231.70
Step by Step Solution
- Step 1: Write the proportion equation
644,134.20 : 966,201.30 = 555,487.80 : x - Step 2: Convert to fraction form
644,134.20/966,201.30 = 555,487.80/x - Step 3: Cross multiply
644,134.20x = 966,201.30 × 555,487.80 - Step 4: Simplify right side
644,134.20x = 536,713,034,494.14 - Step 5: Solve for x
x = 536,713,034,494.14/644,134.20 - Step 6: Final answer
x = 833,231.70
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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.