Finding the Fourth Proportional to 817,088.17, 1,225,829.13 and 256,122.67
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Solution
The fourth proportional to 817,088.17, 1,225,829.13 and 256,122.67 is: 384,245.72
Step by Step Solution
- Step 1: Write the proportion equation
817,088.17 : 1,225,829.13 = 256,122.67 : x - Step 2: Convert to fraction form
817,088.17/1,225,829.13 = 256,122.67/x - Step 3: Cross multiply
817,088.17x = 1,225,829.13 × 256,122.67 - Step 4: Simplify right side
817,088.17x = 313,962,629,739.38 - Step 5: Solve for x
x = 313,962,629,739.38/817,088.17 - Step 6: Final answer
x = 384,245.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.