Finding the Fourth Proportional to 505,170.13, 697,134.79 and 344,306.20
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Solution
The fourth proportional to 505,170.13, 697,134.79 and 344,306.20 is: 475,142.56
Step by Step Solution
- Step 1: Write the proportion equation
505,170.13 : 697,134.79 = 344,306.20 : x - Step 2: Convert to fraction form
505,170.13/697,134.79 = 344,306.20/x - Step 3: Cross multiply
505,170.13x = 697,134.79 × 344,306.20 - Step 4: Simplify right side
505,170.13x = 240,027,830,432.70 - Step 5: Solve for x
x = 240,027,830,432.70/505,170.13 - Step 6: Final answer
x = 475,142.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.