Finding the Fourth Proportional to 566,512.99, 781,785.88 and 311,864.18
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Solution
The fourth proportional to 566,512.99, 781,785.88 and 311,864.18 is: 430,371.44
Step by Step Solution
- Step 1: Write the proportion equation
566,512.99 : 781,785.88 = 311,864.18 : x - Step 2: Convert to fraction form
566,512.99/781,785.88 = 311,864.18/x - Step 3: Cross multiply
566,512.99x = 781,785.88 × 311,864.18 - Step 4: Simplify right side
566,512.99x = 243,811,007,713.19 - Step 5: Solve for x
x = 243,811,007,713.19/566,512.99 - Step 6: Final answer
x = 430,371.44
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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.