Finding the Fourth Proportional to 817,728.14, 1,226,752.68 and 285,266.54
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Solution
The fourth proportional to 817,728.14, 1,226,752.68 and 285,266.54 is: 427,955.79
Step by Step Solution
- Step 1: Write the proportion equation
817,728.14 : 1,226,752.68 = 285,266.54 : x - Step 2: Convert to fraction form
817,728.14/1,226,752.68 = 285,266.54/x - Step 3: Cross multiply
817,728.14x = 1,226,752.68 × 285,266.54 - Step 4: Simplify right side
817,728.14x = 349,951,492,459.33 - Step 5: Solve for x
x = 349,951,492,459.33/817,728.14 - Step 6: Final answer
x = 427,955.79
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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.