Finding the Fourth Proportional to 513,372.71, 708,169.92 and 298,489.02
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Solution
The fourth proportional to 513,372.71, 708,169.92 and 298,489.02 is: 411,749.48
Step by Step Solution
- Step 1: Write the proportion equation
513,372.71 : 708,169.92 = 298,489.02 : x - Step 2: Convert to fraction form
513,372.71/708,169.92 = 298,489.02/x - Step 3: Cross multiply
513,372.71x = 708,169.92 × 298,489.02 - Step 4: Simplify right side
513,372.71x = 211,380,945,414.28 - Step 5: Solve for x
x = 211,380,945,414.28/513,372.71 - Step 6: Final answer
x = 411,749.48
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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.