Finding the Fourth Proportional to 926,827.12, 1,279,040.88 and 524,419.12
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Solution
The fourth proportional to 926,827.12, 1,279,040.88 and 524,419.12 is: 723,709.39
Step by Step Solution
- Step 1: Write the proportion equation
926,827.12 : 1,279,040.88 = 524,419.12 : x - Step 2: Convert to fraction form
926,827.12/1,279,040.88 = 524,419.12/x - Step 3: Cross multiply
926,827.12x = 1,279,040.88 × 524,419.12 - Step 4: Simplify right side
926,827.12x = 670,753,492,733.63 - Step 5: Solve for x
x = 670,753,492,733.63/926,827.12 - Step 6: Final answer
x = 723,709.39
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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.