Finding the Fourth Proportional to 979,979.76, 1,470,177.41 and 348,891.75
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Solution
The fourth proportional to 979,979.76, 1,470,177.41 and 348,891.75 is: 523,411.59
Step by Step Solution
- Step 1: Write the proportion equation
979,979.76 : 1,470,177.41 = 348,891.75 : x - Step 2: Convert to fraction form
979,979.76/1,470,177.41 = 348,891.75/x - Step 3: Cross multiply
979,979.76x = 1,470,177.41 × 348,891.75 - Step 4: Simplify right side
979,979.76x = 512,932,767,640.91 - Step 5: Solve for x
x = 512,932,767,640.91/979,979.76 - Step 6: Final answer
x = 523,411.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.