Finding the Fourth Proportional to 516,242.61, 712,215.66 and 380,598.99
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Solution
The fourth proportional to 516,242.61, 712,215.66 and 380,598.99 is: 525,079.79
Step by Step Solution
- Step 1: Write the proportion equation
516,242.61 : 712,215.66 = 380,598.99 : x - Step 2: Convert to fraction form
516,242.61/712,215.66 = 380,598.99/x - Step 3: Cross multiply
516,242.61x = 712,215.66 × 380,598.99 - Step 4: Simplify right side
516,242.61x = 271,068,560,858.18 - Step 5: Solve for x
x = 271,068,560,858.18/516,242.61 - Step 6: Final answer
x = 525,079.79
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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.