Finding the Fourth Proportional to 815,856.84, 1,126,044.42 and 521,318.28
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Solution
The fourth proportional to 815,856.84, 1,126,044.42 and 521,318.28 is: 719,522.73
Step by Step Solution
- Step 1: Write the proportion equation
815,856.84 : 1,126,044.42 = 521,318.28 : x - Step 2: Convert to fraction form
815,856.84/1,126,044.42 = 521,318.28/x - Step 3: Cross multiply
815,856.84x = 1,126,044.42 × 521,318.28 - Step 4: Simplify right side
815,856.84x = 587,027,540,238.00 - Step 5: Solve for x
x = 587,027,540,238.00/815,856.84 - Step 6: Final answer
x = 719,522.73
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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.