Finding the Fourth Proportional to 513,139.96, 708,112.23 and 283,682.65
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Solution
The fourth proportional to 513,139.96, 708,112.23 and 283,682.65 is: 391,470.49
Step by Step Solution
- Step 1: Write the proportion equation
513,139.96 : 708,112.23 = 283,682.65 : x - Step 2: Convert to fraction form
513,139.96/708,112.23 = 283,682.65/x - Step 3: Cross multiply
513,139.96x = 708,112.23 × 283,682.65 - Step 4: Simplify right side
513,139.96x = 200,879,153,903.81 - Step 5: Solve for x
x = 200,879,153,903.81/513,139.96 - Step 6: Final answer
x = 391,470.49
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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.