Finding the Fourth Proportional to 823,291.28, 1,234,444.80 and 317,432.68
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Solution
The fourth proportional to 823,291.28, 1,234,444.80 and 317,432.68 is: 475,959.28
Step by Step Solution
- Step 1: Write the proportion equation
823,291.28 : 1,234,444.80 = 317,432.68 : x - Step 2: Convert to fraction form
823,291.28/1,234,444.80 = 317,432.68/x - Step 3: Cross multiply
823,291.28x = 1,234,444.80 × 317,432.68 - Step 4: Simplify right side
823,291.28x = 391,853,121,176.06 - Step 5: Solve for x
x = 391,853,121,176.06/823,291.28 - Step 6: Final answer
x = 475,959.28
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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.