Finding the Fourth Proportional to 513,195.74, 708,181.41 and 283,739.66
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Solution
The fourth proportional to 513,195.74, 708,181.41 and 283,739.66 is: 391,544.86
Step by Step Solution
- Step 1: Write the proportion equation
513,195.74 : 708,181.41 = 283,739.66 : x - Step 2: Convert to fraction form
513,195.74/708,181.41 = 283,739.66/x - Step 3: Cross multiply
513,195.74x = 708,181.41 × 283,739.66 - Step 4: Simplify right side
513,195.74x = 200,939,152,491.72 - Step 5: Solve for x
x = 200,939,152,491.72/513,195.74 - Step 6: Final answer
x = 391,544.86
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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.