Finding the Fourth Proportional to 409,213.80, 613,820.70 and 124,903.80
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Solution
The fourth proportional to 409,213.80, 613,820.70 and 124,903.80 is: 187,355.70
Step by Step Solution
- Step 1: Write the proportion equation
409,213.80 : 613,820.70 = 124,903.80 : x - Step 2: Convert to fraction form
409,213.80/613,820.70 = 124,903.80/x - Step 3: Cross multiply
409,213.80x = 613,820.70 × 124,903.80 - Step 4: Simplify right side
409,213.80x = 76,668,537,948.66 - Step 5: Solve for x
x = 76,668,537,948.66/409,213.80 - Step 6: Final answer
x = 187,355.70
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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.