Finding the Fourth Proportional to 513,183.25, 708,214.76 and 286,828.75
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Solution
The fourth proportional to 513,183.25, 708,214.76 and 286,828.75 is: 395,835.90
Step by Step Solution
- Step 1: Write the proportion equation
513,183.25 : 708,214.76 = 286,828.75 : x - Step 2: Convert to fraction form
513,183.25/708,214.76 = 286,828.75/x - Step 3: Cross multiply
513,183.25x = 708,214.76 × 286,828.75 - Step 4: Simplify right side
513,183.25x = 203,136,354,342.35 - Step 5: Solve for x
x = 203,136,354,342.35/513,183.25 - Step 6: Final answer
x = 395,835.90
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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.