Finding the Fourth Proportional to 430,624.80, 644,770.80 and 337,312.80
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Solution
The fourth proportional to 430,624.80, 644,770.80 and 337,312.80 is: 505,055.55
Step by Step Solution
- Step 1: Write the proportion equation
430,624.80 : 644,770.80 = 337,312.80 : x - Step 2: Convert to fraction form
430,624.80/644,770.80 = 337,312.80/x - Step 3: Cross multiply
430,624.80x = 644,770.80 × 337,312.80 - Step 4: Simplify right side
430,624.80x = 217,489,443,906.24 - Step 5: Solve for x
x = 217,489,443,906.24/430,624.80 - Step 6: Final answer
x = 505,055.55
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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.