Finding the Fourth Proportional to 513,709.29, 708,919.49 and 284,276.18
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Solution
The fourth proportional to 513,709.29, 708,919.49 and 284,276.18 is: 392,301.50
Step by Step Solution
- Step 1: Write the proportion equation
513,709.29 : 708,919.49 = 284,276.18 : x - Step 2: Convert to fraction form
513,709.29/708,919.49 = 284,276.18/x - Step 3: Cross multiply
513,709.29x = 708,919.49 × 284,276.18 - Step 4: Simplify right side
513,709.29x = 201,528,927,027.74 - Step 5: Solve for x
x = 201,528,927,027.74/513,709.29 - Step 6: Final answer
x = 392,301.50
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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.