Finding the Fourth Proportional to 620,178.20, 930,267.30 and 611,883.80
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Solution
The fourth proportional to 620,178.20, 930,267.30 and 611,883.80 is: 917,825.70
Step by Step Solution
- Step 1: Write the proportion equation
620,178.20 : 930,267.30 = 611,883.80 : x - Step 2: Convert to fraction form
620,178.20/930,267.30 = 611,883.80/x - Step 3: Cross multiply
620,178.20x = 930,267.30 × 611,883.80 - Step 4: Simplify right side
620,178.20x = 569,215,490,539.74 - Step 5: Solve for x
x = 569,215,490,539.74/620,178.20 - Step 6: Final answer
x = 917,825.70
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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.